./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS --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-4e7fbc6 [2022-11-23 03:58:41,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:58:41,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:58:41,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:58:41,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:58:41,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:58:41,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:58:41,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:58:41,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:58:41,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:58:41,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:58:41,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:58:41,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:58:41,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:58:41,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:58:41,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:58:41,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:58:41,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:58:41,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:58:41,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:58:41,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:58:41,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:58:41,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:58:41,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:58:41,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:58:41,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:58:41,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:58:41,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:58:41,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:58:41,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:58:41,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:58:41,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:58:41,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:58:41,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:58:41,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:58:41,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:58:41,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:58:41,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:58:41,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:58:41,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:58:41,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:58:41,580 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-23 03:58:41,624 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:58:41,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:58:41,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:58:41,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:58:41,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:58:41,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:58:41,627 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:58:41,628 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-23 03:58:41,628 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-23 03:58:41,628 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-23 03:58:41,629 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-23 03:58:41,630 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-23 03:58:41,630 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-23 03:58:41,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:58:41,631 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:58:41,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:58:41,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:58:41,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-23 03:58:41,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-23 03:58:41,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-23 03:58:41,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:58:41,632 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-23 03:58:41,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:58:41,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-23 03:58:41,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:58:41,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:58:41,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:58:41,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:58:41,637 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-23 03:58:41,637 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_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c4ca36c34c25cccb97ec2e65527d2a743b4e62b95f1f396c9f281ef44a01670 [2022-11-23 03:58:42,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:58:42,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:58:42,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:58:42,041 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:58:42,042 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:58:42,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c [2022-11-23 03:58:45,371 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:58:45,667 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:58:45,668 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c [2022-11-23 03:58:45,676 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/data/cd3393dbc/7d0eb10d7e7b4a54a2639e7a73d1748f/FLAG05b19bda9 [2022-11-23 03:58:45,695 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/data/cd3393dbc/7d0eb10d7e7b4a54a2639e7a73d1748f [2022-11-23 03:58:45,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:58:45,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:58:45,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:58:45,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:58:45,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:58:45,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:45" (1/1) ... [2022-11-23 03:58:45,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1513f00d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:45, skipping insertion in model container [2022-11-23 03:58:45,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:45" (1/1) ... [2022-11-23 03:58:45,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:58:45,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:58:46,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:58:46,021 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:58:46,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:58:46,082 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:58:46,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46 WrapperNode [2022-11-23 03:58:46,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:58:46,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:58:46,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:58:46,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:58:46,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46" (1/1) ... [2022-11-23 03:58:46,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46" (1/1) ... [2022-11-23 03:58:46,128 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-11-23 03:58:46,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:58:46,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:58:46,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:58:46,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:58:46,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46" (1/1) ... [2022-11-23 03:58:46,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46" (1/1) ... [2022-11-23 03:58:46,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46" (1/1) ... [2022-11-23 03:58:46,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46" (1/1) ... [2022-11-23 03:58:46,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46" (1/1) ... [2022-11-23 03:58:46,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46" (1/1) ... [2022-11-23 03:58:46,157 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46" (1/1) ... [2022-11-23 03:58:46,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46" (1/1) ... [2022-11-23 03:58:46,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:58:46,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:58:46,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:58:46,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:58:46,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46" (1/1) ... [2022-11-23 03:58:46,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:46,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:46,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:46,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-23 03:58:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:58:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:58:46,364 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:58:46,368 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:58:46,491 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:58:46,498 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:58:46,499 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 03:58:46,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:46 BoogieIcfgContainer [2022-11-23 03:58:46,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:58:46,503 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-23 03:58:46,504 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-23 03:58:46,508 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-23 03:58:46,509 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 03:58:46,510 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 03:58:45" (1/3) ... [2022-11-23 03:58:46,512 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@424974ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 03:58:46, skipping insertion in model container [2022-11-23 03:58:46,513 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 03:58:46,513 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:46" (2/3) ... [2022-11-23 03:58:46,514 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@424974ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 03:58:46, skipping insertion in model container [2022-11-23 03:58:46,515 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 03:58:46,515 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:46" (3/3) ... [2022-11-23 03:58:46,516 INFO L332 chiAutomizerObserver]: Analyzing ICFG UpAndDownIneq.c [2022-11-23 03:58:46,604 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-23 03:58:46,604 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-23 03:58:46,605 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-23 03:58:46,605 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-23 03:58:46,605 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-23 03:58:46,605 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-23 03:58:46,605 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-23 03:58:46,606 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-23 03:58:46,611 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) [2022-11-23 03:58:46,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-23 03:58:46,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:46,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:46,640 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-23 03:58:46,640 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:58:46,640 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-23 03:58:46,641 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) [2022-11-23 03:58:46,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-23 03:58:46,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:46,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:46,644 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-23 03:58:46,644 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:58:46,655 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue 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; 5#L18-1true [2022-11-23 03:58:46,657 INFO L750 eck$LassoCheckResult]: Loop: 5#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; 5#L18-1true [2022-11-23 03:58:46,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:46,670 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-23 03:58:46,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:46,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315493669] [2022-11-23 03:58:46,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:46,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:46,777 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:46,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:46,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:46,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2022-11-23 03:58:46,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:46,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872172601] [2022-11-23 03:58:46,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:46,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:46,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:46,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:46,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:46,851 INFO L85 PathProgramCache]: Analyzing trace with hash 889694446, now seen corresponding path program 1 times [2022-11-23 03:58:46,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:46,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223435077] [2022-11-23 03:58:46,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:46,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:46,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:46,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:46,979 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:46,980 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:46,980 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:46,980 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:46,981 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 03:58:46,981 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:46,981 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:46,981 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:46,982 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration1_Loop [2022-11-23 03:58:46,982 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:46,982 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:47,017 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:47,033 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:47,039 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:47,053 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:47,159 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:47,162 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 03:58:47,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:47,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:47,169 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:47,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-23 03:58:47,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:47,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:47,208 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:58:47,208 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: [] [2022-11-23 03:58:47,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:47,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:47,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:47,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:47,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-23 03:58:47,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:47,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:47,267 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:58:47,267 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: [] [2022-11-23 03:58:47,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:47,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:47,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:47,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:47,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:47,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:47,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-23 03:58:47,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:47,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:47,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:47,322 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:47,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-23 03:58:47,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 03:58:47,335 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:47,362 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 03:58:47,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:47,372 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:47,372 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:47,372 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:47,372 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:47,372 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 03:58:47,372 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:47,372 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:47,373 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:47,373 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration1_Loop [2022-11-23 03:58:47,373 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:47,373 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:47,376 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:47,382 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:47,397 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:47,402 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:47,499 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:47,504 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 03:58:47,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:47,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:47,508 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:47,517 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 [2022-11-23 03:58:47,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-23 03:58:47,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:47,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:58:47,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:47,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:47,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:47,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:58:47,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:58:47,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:58:47,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:47,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:47,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:47,560 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:47,570 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 [2022-11-23 03:58:47,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-23 03:58:47,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:47,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:47,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:47,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:47,596 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-23 03:58:47,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-23 03:58:47,614 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:58:47,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:47,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:47,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:47,627 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:47,639 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 [2022-11-23 03:58:47,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-23 03:58:47,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:47,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:47,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:47,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:47,666 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-23 03:58:47,667 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-23 03:58:47,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:58:47,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:47,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:47,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:47,703 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:47,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-23 03:58:47,707 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 [2022-11-23 03:58:47,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:47,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:58:47,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:47,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:47,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:47,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:58:47,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:58:47,746 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 03:58:47,752 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 03:58:47,752 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 03:58:47,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:47,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:47,788 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:47,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-23 03:58:47,791 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 03:58:47,791 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 03:58:47,791 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 03:58:47,792 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 [] [2022-11-23 03:58:47,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:47,802 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 03:58:47,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:47,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:58:47,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:47,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:58:47,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:47,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:47,938 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 [2022-11-23 03:58:47,941 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) [2022-11-23 03:58:48,017 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. [2022-11-23 03:58:48,020 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 [2022-11-23 03:58:48,025 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) [2022-11-23 03:58:48,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2022-11-23 03:58:48,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-23 03:58:48,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:48,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-23 03:58:48,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:48,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2022-11-23 03:58:48,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:48,032 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2022-11-23 03:58:48,035 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-23 03:58:48,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 30 transitions. [2022-11-23 03:58:48,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-23 03:58:48,043 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-23 03:58:48,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 30 transitions. [2022-11-23 03:58:48,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:48,044 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 30 transitions. [2022-11-23 03:58:48,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 30 transitions. [2022-11-23 03:58:48,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-11-23 03:58:48,076 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) [2022-11-23 03:58:48,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2022-11-23 03:58:48,078 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-11-23 03:58:48,078 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-11-23 03:58:48,079 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-23 03:58:48,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2022-11-23 03:58:48,080 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-23 03:58:48,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:48,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:48,081 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-23 03:58:48,081 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:58:48,081 INFO L748 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 98#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; 103#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 105#L12 [2022-11-23 03:58:48,082 INFO L750 eck$LassoCheckResult]: Loop: 105#L12 assume !(main_~i~0#1 >= 10); 91#L12-2 assume !(main_~i~0#1 <= 0); 93#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 107#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 105#L12 [2022-11-23 03:58:48,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:48,083 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-23 03:58:48,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:48,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797210273] [2022-11-23 03:58:48,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:48,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:48,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:48,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:48,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:48,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 1 times [2022-11-23 03:58:48,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:48,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229817844] [2022-11-23 03:58:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:48,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:48,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:48,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:48,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:48,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725983, now seen corresponding path program 1 times [2022-11-23 03:58:48,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:48,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628331695] [2022-11-23 03:58:48,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:48,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:48,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:48,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:48,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628331695] [2022-11-23 03:58:48,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628331695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:58:48,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:58:48,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:58:48,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047972759] [2022-11-23 03:58:48,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:58:48,217 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:48,217 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:48,217 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:48,217 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:48,218 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 03:58:48,218 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:48,218 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:48,218 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:48,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration2_Loop [2022-11-23 03:58:48,219 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:48,219 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:48,221 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:48,225 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:48,235 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:48,240 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:48,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:48,331 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:48,331 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 03:58:48,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:48,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:48,333 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:48,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-23 03:58:48,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:48,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:48,385 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:58:48,385 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: [] [2022-11-23 03:58:48,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:48,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:48,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:48,394 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:48,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-23 03:58:48,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:48,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:48,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:48,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:48,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:48,438 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:48,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-23 03:58:48,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 03:58:48,443 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:48,486 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 03:58:48,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:48,497 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:48,497 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:48,497 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:48,497 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:48,497 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 03:58:48,498 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:48,498 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:48,498 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:48,498 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration2_Loop [2022-11-23 03:58:48,498 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:48,498 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:48,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:48,514 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:48,526 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:48,530 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:48,588 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:48,588 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 03:58:48,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:48,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:48,590 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:48,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-23 03:58:48,602 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 [2022-11-23 03:58:48,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:48,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:48,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:48,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:48,623 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-23 03:58:48,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-23 03:58:48,637 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:58:48,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:48,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:48,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:48,651 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:48,660 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 [2022-11-23 03:58:48,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-23 03:58:48,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:48,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:58:48,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:48,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:48,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:48,679 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:58:48,679 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:58:48,689 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 03:58:48,692 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 03:58:48,693 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 03:58:48,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:48,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:48,695 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:48,706 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 03:58:48,706 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 03:58:48,707 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 03:58:48,707 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 [] [2022-11-23 03:58:48,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-23 03:58:48,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:48,725 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 03:58:48,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:48,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:58:48,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:48,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:58:48,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:48,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:48,906 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 [2022-11-23 03:58:48,906 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) [2022-11-23 03:58:48,972 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. [2022-11-23 03:58:48,973 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 [2022-11-23 03:58:48,973 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) [2022-11-23 03:58:48,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-11-23 03:58:48,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2022-11-23 03:58:48,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:48,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2022-11-23 03:58:48,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:48,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 8 letters. [2022-11-23 03:58:48,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:48,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 73 transitions. [2022-11-23 03:58:48,988 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-23 03:58:48,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 36 states and 59 transitions. [2022-11-23 03:58:48,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-23 03:58:48,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2022-11-23 03:58:48,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 59 transitions. [2022-11-23 03:58:48,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:48,994 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 59 transitions. [2022-11-23 03:58:48,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 59 transitions. [2022-11-23 03:58:48,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2022-11-23 03:58:48,997 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) [2022-11-23 03:58:48,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 46 transitions. [2022-11-23 03:58:48,998 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 46 transitions. [2022-11-23 03:58:48,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:58:49,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:58:49,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:58:49,006 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) [2022-11-23 03:58:49,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:58:49,026 INFO L93 Difference]: Finished difference Result 37 states and 56 transitions. [2022-11-23 03:58:49,027 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 56 transitions. [2022-11-23 03:58:49,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-23 03:58:49,033 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 49 transitions. [2022-11-23 03:58:49,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-23 03:58:49,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-23 03:58:49,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 49 transitions. [2022-11-23 03:58:49,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:49,034 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2022-11-23 03:58:49,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 49 transitions. [2022-11-23 03:58:49,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2022-11-23 03:58:49,040 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) [2022-11-23 03:58:49,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 40 transitions. [2022-11-23 03:58:49,042 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 40 transitions. [2022-11-23 03:58:49,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:58:49,044 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 40 transitions. [2022-11-23 03:58:49,044 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-23 03:58:49,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 40 transitions. [2022-11-23 03:58:49,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-23 03:58:49,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:49,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:49,047 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-23 03:58:49,047 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:58:49,048 INFO L748 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY 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 [2022-11-23 03:58:49,049 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 [2022-11-23 03:58:49,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:49,049 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2022-11-23 03:58:49,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:49,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679871986] [2022-11-23 03:58:49,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:49,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:49,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:49,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:49,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:49,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1768758, now seen corresponding path program 1 times [2022-11-23 03:58:49,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:49,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731660942] [2022-11-23 03:58:49,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:49,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:49,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:49,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:49,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:49,103 INFO L85 PathProgramCache]: Analyzing trace with hash 588716581, now seen corresponding path program 1 times [2022-11-23 03:58:49,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:49,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613873809] [2022-11-23 03:58:49,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:49,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:49,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:49,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:49,197 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:49,197 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:49,197 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:49,197 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:49,199 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 03:58:49,199 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:49,199 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:49,200 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:49,200 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration3_Loop [2022-11-23 03:58:49,200 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:49,200 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:49,202 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:49,215 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:49,219 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:49,230 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:49,287 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:49,288 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 03:58:49,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:49,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:49,290 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:49,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:49,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:49,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-23 03:58:49,327 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:58:49,327 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: [] [2022-11-23 03:58:49,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:49,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:49,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:49,338 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:49,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:49,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:49,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-23 03:58:49,375 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:58:49,375 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: [] [2022-11-23 03:58:49,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:49,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:49,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:49,387 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:49,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:49,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:49,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-23 03:58:49,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:49,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:49,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:49,445 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:49,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 03:58:49,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:49,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-23 03:58:49,590 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 03:58:49,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:49,594 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:49,594 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:49,594 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:49,594 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:49,594 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 03:58:49,594 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:49,594 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:49,595 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:49,595 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration3_Loop [2022-11-23 03:58:49,595 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:49,595 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:49,596 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:49,606 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:49,615 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:49,618 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:49,670 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:49,670 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 03:58:49,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:49,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:49,671 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:49,680 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 [2022-11-23 03:58:49,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:49,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:58:49,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-23 03:58:49,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:49,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:49,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:49,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:58:49,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:58:49,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:58:49,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:49,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:49,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:49,712 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:49,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-23 03:58:49,720 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 [2022-11-23 03:58:49,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:49,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:58:49,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:49,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:49,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:49,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:58:49,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:58:49,755 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 03:58:49,758 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-23 03:58:49,758 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 03:58:49,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:49,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:49,765 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:49,767 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 03:58:49,767 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 03:58:49,767 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 03:58:49,767 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 [] [2022-11-23 03:58:49,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-23 03:58:49,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:49,773 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 03:58:49,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:49,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:58:49,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:49,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:58:49,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:49,837 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 [2022-11-23 03:58:49,838 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) [2022-11-23 03:58:49,870 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. [2022-11-23 03:58:49,871 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 [2022-11-23 03:58:49,871 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) [2022-11-23 03:58:49,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-23 03:58:49,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-23 03:58:49,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:49,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2022-11-23 03:58:49,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:49,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2022-11-23 03:58:49,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:49,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 90 transitions. [2022-11-23 03:58:49,876 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2022-11-23 03:58:49,877 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 55 states and 85 transitions. [2022-11-23 03:58:49,877 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-11-23 03:58:49,877 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-11-23 03:58:49,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 85 transitions. [2022-11-23 03:58:49,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:49,877 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 85 transitions. [2022-11-23 03:58:49,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 85 transitions. [2022-11-23 03:58:49,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2022-11-23 03:58:49,884 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) [2022-11-23 03:58:49,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 79 transitions. [2022-11-23 03:58:49,886 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 79 transitions. [2022-11-23 03:58:49,886 INFO L428 stractBuchiCegarLoop]: Abstraction has 49 states and 79 transitions. [2022-11-23 03:58:49,886 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-23 03:58:49,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 79 transitions. [2022-11-23 03:58:49,890 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2022-11-23 03:58:49,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:49,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:49,894 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:58:49,895 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:58:49,896 INFO L748 eck$LassoCheckResult]: Stem: 406#ULTIMATE.startENTRY 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 [2022-11-23 03:58:49,896 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 [2022-11-23 03:58:49,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:49,897 INFO L85 PathProgramCache]: Analyzing trace with hash 889692526, now seen corresponding path program 1 times [2022-11-23 03:58:49,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:49,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738723827] [2022-11-23 03:58:49,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:49,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:49,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:49,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738723827] [2022-11-23 03:58:49,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738723827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:58:49,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:58:49,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:58:49,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413976091] [2022-11-23 03:58:49,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:58:49,952 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 03:58:49,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:49,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1267246, now seen corresponding path program 1 times [2022-11-23 03:58:49,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:49,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459328035] [2022-11-23 03:58:49,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:49,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:49,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:49,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459328035] [2022-11-23 03:58:49,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459328035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:58:49,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:58:49,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:58:49,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271247140] [2022-11-23 03:58:49,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:58:49,989 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-23 03:58:49,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:58:49,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:58:49,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:58:49,990 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) [2022-11-23 03:58:50,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:58:50,010 INFO L93 Difference]: Finished difference Result 47 states and 69 transitions. [2022-11-23 03:58:50,010 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 69 transitions. [2022-11-23 03:58:50,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-23 03:58:50,013 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 41 states and 60 transitions. [2022-11-23 03:58:50,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-23 03:58:50,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-23 03:58:50,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 60 transitions. [2022-11-23 03:58:50,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:50,016 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 60 transitions. [2022-11-23 03:58:50,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 60 transitions. [2022-11-23 03:58:50,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-11-23 03:58:50,021 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) [2022-11-23 03:58:50,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 59 transitions. [2022-11-23 03:58:50,023 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 59 transitions. [2022-11-23 03:58:50,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:58:50,025 INFO L428 stractBuchiCegarLoop]: Abstraction has 40 states and 59 transitions. [2022-11-23 03:58:50,026 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-23 03:58:50,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 59 transitions. [2022-11-23 03:58:50,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-23 03:58:50,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:50,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:50,028 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-23 03:58:50,028 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:58:50,028 INFO L748 eck$LassoCheckResult]: Stem: 505#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 506#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 [2022-11-23 03:58:50,029 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 [2022-11-23 03:58:50,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:50,029 INFO L85 PathProgramCache]: Analyzing trace with hash 588716517, now seen corresponding path program 1 times [2022-11-23 03:58:50,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:50,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356350817] [2022-11-23 03:58:50,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:50,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:50,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:50,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:50,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356350817] [2022-11-23 03:58:50,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356350817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:58:50,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:58:50,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:58:50,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341703108] [2022-11-23 03:58:50,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:58:50,100 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 03:58:50,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:50,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1709112, now seen corresponding path program 1 times [2022-11-23 03:58:50,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:50,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868337418] [2022-11-23 03:58:50,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:50,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:50,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:50,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:50,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868337418] [2022-11-23 03:58:50,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868337418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:58:50,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:58:50,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:58:50,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568714593] [2022-11-23 03:58:50,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:58:50,122 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-23 03:58:50,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:58:50,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:58:50,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:58:50,123 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) [2022-11-23 03:58:50,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:58:50,136 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2022-11-23 03:58:50,136 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 64 transitions. [2022-11-23 03:58:50,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-23 03:58:50,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 45 states and 60 transitions. [2022-11-23 03:58:50,138 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-11-23 03:58:50,138 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2022-11-23 03:58:50,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 60 transitions. [2022-11-23 03:58:50,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:50,139 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 60 transitions. [2022-11-23 03:58:50,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 60 transitions. [2022-11-23 03:58:50,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-11-23 03:58:50,141 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) [2022-11-23 03:58:50,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2022-11-23 03:58:50,142 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-11-23 03:58:50,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:58:50,143 INFO L428 stractBuchiCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-11-23 03:58:50,144 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-23 03:58:50,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 54 transitions. [2022-11-23 03:58:50,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-23 03:58:50,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:50,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:50,145 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:58:50,145 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:58:50,145 INFO L748 eck$LassoCheckResult]: Stem: 606#ULTIMATE.startENTRY 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 [2022-11-23 03:58:50,146 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 [2022-11-23 03:58:50,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:50,146 INFO L85 PathProgramCache]: Analyzing trace with hash 588716579, now seen corresponding path program 1 times [2022-11-23 03:58:50,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:50,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174097801] [2022-11-23 03:58:50,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:50,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:50,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:50,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:50,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174097801] [2022-11-23 03:58:50,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174097801] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:58:50,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934411435] [2022-11-23 03:58:50,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:50,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:58:50,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:50,183 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:58:50,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-23 03:58:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:50,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:58:50,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:50,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:50,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:58:50,268 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:50,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934411435] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:58:50,268 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:58:50,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-23 03:58:50,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241134608] [2022-11-23 03:58:50,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:58:50,269 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 03:58:50,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:50,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1709174, now seen corresponding path program 2 times [2022-11-23 03:58:50,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:50,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026602491] [2022-11-23 03:58:50,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:50,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:50,275 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:50,278 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:50,323 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:50,323 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:50,323 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:50,323 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:50,323 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 03:58:50,324 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:50,324 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:50,324 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:50,324 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration6_Loop [2022-11-23 03:58:50,324 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:50,324 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:50,325 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:50,329 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:50,335 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:50,343 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:50,408 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:50,408 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 03:58:50,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:50,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:50,419 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:50,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:50,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:50,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-23 03:58:50,452 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:58:50,452 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: [] [2022-11-23 03:58:50,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:50,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:50,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:50,461 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:50,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:50,466 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:50,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-23 03:58:50,491 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:58:50,491 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: [] [2022-11-23 03:58:50,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:50,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:50,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:50,502 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:50,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:50,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:50,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-23 03:58:50,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:50,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:50,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:50,546 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:50,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 03:58:50,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:50,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-23 03:58:50,661 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 03:58:50,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:50,665 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:50,665 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:50,665 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:50,665 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:50,665 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 03:58:50,665 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:50,665 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:50,665 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:50,665 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration6_Loop [2022-11-23 03:58:50,665 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:50,665 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:50,667 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:50,681 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:50,692 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:50,696 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:50,763 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:50,763 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 03:58:50,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:50,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:50,764 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:50,801 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 [2022-11-23 03:58:50,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-23 03:58:50,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:50,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:58:50,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:50,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:50,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:50,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:58:50,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:58:50,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:50,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:58:50,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:50,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:50,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:50,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:50,876 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:50,911 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 [2022-11-23 03:58:50,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-23 03:58:50,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:50,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:58:50,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:50,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:50,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:50,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:58:50,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:58:50,951 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 03:58:50,956 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 03:58:50,956 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-23 03:58:50,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:50,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:50,959 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:50,965 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 03:58:50,965 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 03:58:50,965 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 03:58:50,965 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 [] [2022-11-23 03:58:50,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-23 03:58:50,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:50,976 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 03:58:50,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:51,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:58:51,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:51,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:58:51,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:51,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:51,042 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 [2022-11-23 03:58:51,042 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) [2022-11-23 03:58:51,086 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. [2022-11-23 03:58:51,087 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 [2022-11-23 03:58:51,088 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) [2022-11-23 03:58:51,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-23 03:58:51,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 9 letters. Loop has 4 letters. [2022-11-23 03:58:51,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:51,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 13 letters. Loop has 4 letters. [2022-11-23 03:58:51,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:51,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 9 letters. Loop has 8 letters. [2022-11-23 03:58:51,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:51,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 136 transitions. [2022-11-23 03:58:51,091 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2022-11-23 03:58:51,092 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 91 states and 122 transitions. [2022-11-23 03:58:51,092 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2022-11-23 03:58:51,093 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-11-23 03:58:51,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 122 transitions. [2022-11-23 03:58:51,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:51,093 INFO L218 hiAutomatonCegarLoop]: Abstraction has 91 states and 122 transitions. [2022-11-23 03:58:51,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 122 transitions. [2022-11-23 03:58:51,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 78. [2022-11-23 03:58:51,098 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) [2022-11-23 03:58:51,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2022-11-23 03:58:51,099 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 109 transitions. [2022-11-23 03:58:51,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:58:51,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:58:51,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:58:51,100 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) [2022-11-23 03:58:51,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:58:51,145 INFO L93 Difference]: Finished difference Result 139 states and 174 transitions. [2022-11-23 03:58:51,146 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 139 states and 174 transitions. [2022-11-23 03:58:51,147 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-11-23 03:58:51,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 139 states to 108 states and 137 transitions. [2022-11-23 03:58:51,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-11-23 03:58:51,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2022-11-23 03:58:51,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 137 transitions. [2022-11-23 03:58:51,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:51,150 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 137 transitions. [2022-11-23 03:58:51,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 137 transitions. [2022-11-23 03:58:51,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 86. [2022-11-23 03:58:51,154 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) [2022-11-23 03:58:51,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2022-11-23 03:58:51,155 INFO L240 hiAutomatonCegarLoop]: Abstraction has 86 states and 111 transitions. [2022-11-23 03:58:51,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:58:51,157 INFO L428 stractBuchiCegarLoop]: Abstraction has 86 states and 111 transitions. [2022-11-23 03:58:51,157 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-23 03:58:51,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 111 transitions. [2022-11-23 03:58:51,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-23 03:58:51,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:51,158 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:51,159 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-23 03:58:51,159 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:58:51,159 INFO L748 eck$LassoCheckResult]: Stem: 1075#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1076#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1079#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1088#L12 assume !(main_~i~0#1 >= 10); 1098#L12-2 assume !(main_~i~0#1 <= 0); 1097#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1095#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1092#L12 assume !(main_~i~0#1 >= 10); 1091#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 1090#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1070#L18-1 [2022-11-23 03:58:51,159 INFO L750 eck$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 [2022-11-23 03:58:51,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:51,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1449615143, now seen corresponding path program 1 times [2022-11-23 03:58:51,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:51,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045131145] [2022-11-23 03:58:51,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:51,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:51,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:51,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:51,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:51,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1267306, now seen corresponding path program 2 times [2022-11-23 03:58:51,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:51,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783384297] [2022-11-23 03:58:51,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:51,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:51,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:51,182 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:51,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:51,183 INFO L85 PathProgramCache]: Analyzing trace with hash -130036926, now seen corresponding path program 2 times [2022-11-23 03:58:51,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:51,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116765397] [2022-11-23 03:58:51,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:51,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:51,190 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:51,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:51,235 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:51,235 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:51,235 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:51,235 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:51,235 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 03:58:51,235 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:51,236 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:51,236 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:51,236 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration7_Loop [2022-11-23 03:58:51,236 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:51,236 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:51,237 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:51,247 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:51,251 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:51,255 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:51,307 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:51,308 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 03:58:51,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:51,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:51,310 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:51,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:51,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:51,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-23 03:58:51,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:51,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:51,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:51,362 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:51,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 03:58:51,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:51,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-23 03:58:51,403 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 03:58:51,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:51,409 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:51,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:51,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:51,409 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:51,409 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 03:58:51,410 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:51,410 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:51,410 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:51,410 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration7_Loop [2022-11-23 03:58:51,410 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:51,410 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:51,411 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:51,425 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:51,428 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:51,431 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:51,475 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:51,475 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 03:58:51,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:51,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:51,476 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:51,488 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 [2022-11-23 03:58:51,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:51,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:58:51,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:51,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:51,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:51,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-23 03:58:51,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:58:51,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:58:51,519 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 03:58:51,528 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 03:58:51,528 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 03:58:51,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:51,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:51,529 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:51,534 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 03:58:51,534 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 03:58:51,534 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 03:58:51,534 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 [] [2022-11-23 03:58:51,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-23 03:58:51,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:51,544 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 03:58:51,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:51,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:58:51,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:51,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:58:51,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:51,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:51,628 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 [2022-11-23 03:58:51,629 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) [2022-11-23 03:58:51,664 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. [2022-11-23 03:58:51,665 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 [2022-11-23 03:58:51,667 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) [2022-11-23 03:58:51,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-23 03:58:51,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 4 letters. [2022-11-23 03:58:51,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:51,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2022-11-23 03:58:51,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:51,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 8 letters. [2022-11-23 03:58:51,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:51,670 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 145 transitions. [2022-11-23 03:58:51,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-23 03:58:51,675 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 97 states and 125 transitions. [2022-11-23 03:58:51,676 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-23 03:58:51,677 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2022-11-23 03:58:51,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 125 transitions. [2022-11-23 03:58:51,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:51,678 INFO L218 hiAutomatonCegarLoop]: Abstraction has 97 states and 125 transitions. [2022-11-23 03:58:51,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 125 transitions. [2022-11-23 03:58:51,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2022-11-23 03:58:51,697 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) [2022-11-23 03:58:51,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions. [2022-11-23 03:58:51,701 INFO L240 hiAutomatonCegarLoop]: Abstraction has 86 states and 112 transitions. [2022-11-23 03:58:51,701 INFO L428 stractBuchiCegarLoop]: Abstraction has 86 states and 112 transitions. [2022-11-23 03:58:51,707 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-23 03:58:51,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 112 transitions. [2022-11-23 03:58:51,708 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-23 03:58:51,709 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:51,709 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:51,709 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:58:51,709 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:58:51,710 INFO L748 eck$LassoCheckResult]: Stem: 1341#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1342#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1347#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1370#L12 assume !(main_~i~0#1 >= 10); 1368#L12-2 assume !(main_~i~0#1 <= 0); 1367#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1365#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1362#L12 assume !(main_~i~0#1 >= 10); 1361#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 1348#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1336#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1338#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1332#L12-2 [2022-11-23 03:58:51,710 INFO L750 eck$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 [2022-11-23 03:58:51,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:51,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1510748164, now seen corresponding path program 1 times [2022-11-23 03:58:51,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:51,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365442844] [2022-11-23 03:58:51,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:51,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:51,758 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 03:58:51,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:51,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365442844] [2022-11-23 03:58:51,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365442844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:58:51,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:58:51,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:58:51,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415519351] [2022-11-23 03:58:51,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:58:51,766 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 03:58:51,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:51,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 1 times [2022-11-23 03:58:51,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:51,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368277889] [2022-11-23 03:58:51,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:51,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:51,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:51,783 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:51,839 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:51,839 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:51,839 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:51,839 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:51,839 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 03:58:51,840 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:51,840 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:51,840 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:51,840 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration8_Loop [2022-11-23 03:58:51,840 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:51,840 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:51,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:51,850 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:51,854 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:51,858 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:51,921 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:51,921 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 03:58:51,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:51,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:51,923 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:51,932 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:51,932 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:51,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-23 03:58:51,963 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:58:51,963 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: [] [2022-11-23 03:58:51,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:51,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:51,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:51,975 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:51,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:51,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:51,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-23 03:58:52,006 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:58:52,006 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: [] [2022-11-23 03:58:52,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:52,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:52,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:52,013 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:52,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:52,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:52,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-23 03:58:52,051 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:58:52,051 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: [] [2022-11-23 03:58:52,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:52,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:52,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:52,063 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:52,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:52,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:52,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-23 03:58:52,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:52,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:52,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:52,090 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:52,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 03:58:52,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:52,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-23 03:58:52,203 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 03:58:52,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-11-23 03:58:52,206 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:52,206 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:52,207 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:52,207 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:52,207 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 03:58:52,207 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:52,207 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:52,207 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:52,207 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration8_Loop [2022-11-23 03:58:52,207 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:52,207 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:52,208 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:52,219 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:52,227 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:52,235 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:52,287 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:52,287 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 03:58:52,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:52,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:52,289 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:52,300 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 [2022-11-23 03:58:52,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-23 03:58:52,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:52,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:58:52,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:52,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:52,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:52,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:58:52,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:58:52,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:58:52,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-11-23 03:58:52,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:52,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:52,320 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:52,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-23 03:58:52,323 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 [2022-11-23 03:58:52,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:52,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:52,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:52,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:52,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-23 03:58:52,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-23 03:58:52,348 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:58:52,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-11-23 03:58:52,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:52,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:52,354 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:52,363 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 [2022-11-23 03:58:52,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-23 03:58:52,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:52,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:58:52,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:52,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:52,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:52,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:58:52,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:58:52,407 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 03:58:52,411 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 03:58:52,411 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-23 03:58:52,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:52,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:52,419 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:52,425 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 03:58:52,425 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 03:58:52,425 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 03:58:52,425 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 [] [2022-11-23 03:58:52,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-23 03:58:52,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:52,436 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 03:58:52,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:52,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:58:52,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:52,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:58:52,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:52,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:52,532 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 [2022-11-23 03:58:52,532 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) [2022-11-23 03:58:52,575 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. [2022-11-23 03:58:52,577 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 [2022-11-23 03:58:52,578 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) [2022-11-23 03:58:52,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-23 03:58:52,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-23 03:58:52,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:52,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-23 03:58:52,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:52,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-23 03:58:52,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:52,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 256 transitions. [2022-11-23 03:58:52,582 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-23 03:58:52,583 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 140 states and 182 transitions. [2022-11-23 03:58:52,583 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2022-11-23 03:58:52,584 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2022-11-23 03:58:52,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 140 states and 182 transitions. [2022-11-23 03:58:52,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:52,584 INFO L218 hiAutomatonCegarLoop]: Abstraction has 140 states and 182 transitions. [2022-11-23 03:58:52,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states and 182 transitions. [2022-11-23 03:58:52,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 94. [2022-11-23 03:58:52,593 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) [2022-11-23 03:58:52,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2022-11-23 03:58:52,597 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 124 transitions. [2022-11-23 03:58:52,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:58:52,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:58:52,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:58:52,598 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) [2022-11-23 03:58:52,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:58:52,621 INFO L93 Difference]: Finished difference Result 105 states and 132 transitions. [2022-11-23 03:58:52,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 132 transitions. [2022-11-23 03:58:52,622 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2022-11-23 03:58:52,623 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 103 states and 130 transitions. [2022-11-23 03:58:52,623 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2022-11-23 03:58:52,623 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-23 03:58:52,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 130 transitions. [2022-11-23 03:58:52,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:52,624 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 130 transitions. [2022-11-23 03:58:52,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 130 transitions. [2022-11-23 03:58:52,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2022-11-23 03:58:52,634 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) [2022-11-23 03:58:52,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2022-11-23 03:58:52,634 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 121 transitions. [2022-11-23 03:58:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:58:52,636 INFO L428 stractBuchiCegarLoop]: Abstraction has 94 states and 121 transitions. [2022-11-23 03:58:52,636 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-23 03:58:52,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 121 transitions. [2022-11-23 03:58:52,637 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-23 03:58:52,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:52,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:52,640 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 2, 1, 1, 1] [2022-11-23 03:58:52,640 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:58:52,640 INFO L748 eck$LassoCheckResult]: Stem: 1885#ULTIMATE.startENTRY 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 [2022-11-23 03:58:52,640 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 [2022-11-23 03:58:52,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:52,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1054469156, now seen corresponding path program 2 times [2022-11-23 03:58:52,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:52,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303498578] [2022-11-23 03:58:52,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:52,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:52,800 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 03:58:52,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:52,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303498578] [2022-11-23 03:58:52,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303498578] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:58:52,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871793137] [2022-11-23 03:58:52,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:58:52,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:58:52,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:52,803 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:58:52,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2022-11-23 03:58:52,856 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:58:52,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:58:52,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 03:58:52,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:52,899 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 03:58:52,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:58:52,982 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 03:58:52,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871793137] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:58:52,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:58:52,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-11-23 03:58:52,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302221578] [2022-11-23 03:58:52,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:58:52,983 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 03:58:52,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:52,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 2 times [2022-11-23 03:58:52,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:52,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346237833] [2022-11-23 03:58:52,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:52,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:52,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:52,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:53,027 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:53,027 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:53,027 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:53,027 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:53,027 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 03:58:53,028 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:53,028 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:53,028 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:53,028 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration9_Loop [2022-11-23 03:58:53,028 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:53,028 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:53,029 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:53,037 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:53,040 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:53,045 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:53,095 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:53,096 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 03:58:53,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:53,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:53,099 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:53,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-23 03:58:53,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:58:53,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:53,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:53,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:53,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:53,141 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:53,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 03:58:53,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:58:53,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-23 03:58:53,255 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 03:58:53,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2022-11-23 03:58:53,258 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:58:53,259 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:58:53,259 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:58:53,259 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:58:53,259 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 03:58:53,259 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:53,259 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:58:53,259 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:58:53,259 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration9_Loop [2022-11-23 03:58:53,259 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:58:53,259 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:58:53,260 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:53,280 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:53,289 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:53,293 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:58:53,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:53,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:53,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:53,373 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:58:53,373 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 03:58:53,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:53,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:53,375 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:53,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-23 03:58:53,379 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 [2022-11-23 03:58:53,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:58:53,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:58:53,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:58:53,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:58:53,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:58:53,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:58:53,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:58:53,405 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 03:58:53,409 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 03:58:53,409 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-23 03:58:53,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:58:53,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:53,410 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:53,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-23 03:58:53,413 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 03:58:53,413 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 03:58:53,413 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 03:58:53,413 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 [] [2022-11-23 03:58:53,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2022-11-23 03:58:53,417 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 03:58:53,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:53,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:58:53,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:53,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:58:53,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:53,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:53,527 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 [2022-11-23 03:58:53,527 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) [2022-11-23 03:58:53,561 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. [2022-11-23 03:58:53,561 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 [2022-11-23 03:58:53,562 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) [2022-11-23 03:58:53,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-23 03:58:53,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 28 letters. Loop has 4 letters. [2022-11-23 03:58:53,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:53,563 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-23 03:58:53,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:53,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:58:53,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:53,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:58:53,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:53,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:53,663 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 [2022-11-23 03:58:53,663 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) [2022-11-23 03:58:53,707 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. [2022-11-23 03:58:53,707 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 [2022-11-23 03:58:53,708 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) [2022-11-23 03:58:53,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-23 03:58:53,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 28 letters. Loop has 4 letters. [2022-11-23 03:58:53,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:53,709 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-23 03:58:53,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:53,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:58:53,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:53,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:58:53,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:53,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:53,802 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 [2022-11-23 03:58:53,802 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) [2022-11-23 03:58:53,833 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. [2022-11-23 03:58:53,834 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 [2022-11-23 03:58:53,834 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) [2022-11-23 03:58:53,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-11-23 03:58:53,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 4 letters. [2022-11-23 03:58:53,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:53,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 32 letters. Loop has 4 letters. [2022-11-23 03:58:53,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:53,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 8 letters. [2022-11-23 03:58:53,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:58:53,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 163 states and 221 transitions. [2022-11-23 03:58:53,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2022-11-23 03:58:53,839 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 163 states to 115 states and 147 transitions. [2022-11-23 03:58:53,840 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-23 03:58:53,840 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-11-23 03:58:53,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 147 transitions. [2022-11-23 03:58:53,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:53,841 INFO L218 hiAutomatonCegarLoop]: Abstraction has 115 states and 147 transitions. [2022-11-23 03:58:53,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 147 transitions. [2022-11-23 03:58:53,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 61. [2022-11-23 03:58:53,843 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) [2022-11-23 03:58:53,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2022-11-23 03:58:53,843 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 78 transitions. [2022-11-23 03:58:53,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:58:53,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:58:53,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:58:53,845 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) [2022-11-23 03:58:53,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:58:53,992 INFO L93 Difference]: Finished difference Result 195 states and 238 transitions. [2022-11-23 03:58:53,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 238 transitions. [2022-11-23 03:58:53,994 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 82 [2022-11-23 03:58:53,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 182 states and 225 transitions. [2022-11-23 03:58:53,996 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2022-11-23 03:58:53,996 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2022-11-23 03:58:53,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 225 transitions. [2022-11-23 03:58:53,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:53,997 INFO L218 hiAutomatonCegarLoop]: Abstraction has 182 states and 225 transitions. [2022-11-23 03:58:53,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 225 transitions. [2022-11-23 03:58:54,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 168. [2022-11-23 03:58:54,000 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) [2022-11-23 03:58:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 211 transitions. [2022-11-23 03:58:54,001 INFO L240 hiAutomatonCegarLoop]: Abstraction has 168 states and 211 transitions. [2022-11-23 03:58:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:58:54,003 INFO L428 stractBuchiCegarLoop]: Abstraction has 168 states and 211 transitions. [2022-11-23 03:58:54,003 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-11-23 03:58:54,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 211 transitions. [2022-11-23 03:58:54,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-11-23 03:58:54,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:54,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:54,008 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 03:58:54,008 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-11-23 03:58:54,008 INFO L748 eck$LassoCheckResult]: Stem: 3216#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 3217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3220#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3224#L12 assume !(main_~i~0#1 >= 10); 3229#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 3227#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3212#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3213#L12 assume !(main_~i~0#1 >= 10); 3320#L12-2 assume !(main_~i~0#1 <= 0); 3321#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3316#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3274#L12 [2022-11-23 03:58:54,010 INFO L750 eck$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 [2022-11-23 03:58:54,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:54,010 INFO L85 PathProgramCache]: Analyzing trace with hash 474307092, now seen corresponding path program 1 times [2022-11-23 03:58:54,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:54,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116032740] [2022-11-23 03:58:54,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:54,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:54,018 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:54,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:54,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:54,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1617023097, now seen corresponding path program 1 times [2022-11-23 03:58:54,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:54,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986182092] [2022-11-23 03:58:54,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:54,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:54,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:54,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:54,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:54,087 INFO L85 PathProgramCache]: Analyzing trace with hash -68907892, now seen corresponding path program 3 times [2022-11-23 03:58:54,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:54,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528647860] [2022-11-23 03:58:54,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:54,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:54,220 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-23 03:58:54,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:54,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528647860] [2022-11-23 03:58:54,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528647860] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:58:54,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486237298] [2022-11-23 03:58:54,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:58:54,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:58:54,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:54,223 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:58:54,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2022-11-23 03:58:54,283 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-23 03:58:54,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:58:54,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:58:54,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:54,316 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-23 03:58:54,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:58:54,361 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-23 03:58:54,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486237298] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:58:54,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:58:54,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-11-23 03:58:54,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548157712] [2022-11-23 03:58:54,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:58:54,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:55,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:58:55,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:58:55,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:58:55,065 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) [2022-11-23 03:58:55,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:58:55,124 INFO L93 Difference]: Finished difference Result 179 states and 197 transitions. [2022-11-23 03:58:55,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 179 states and 197 transitions. [2022-11-23 03:58:55,126 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-11-23 03:58:55,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 179 states to 175 states and 193 transitions. [2022-11-23 03:58:55,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2022-11-23 03:58:55,127 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2022-11-23 03:58:55,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 193 transitions. [2022-11-23 03:58:55,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:55,128 INFO L218 hiAutomatonCegarLoop]: Abstraction has 175 states and 193 transitions. [2022-11-23 03:58:55,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 193 transitions. [2022-11-23 03:58:55,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 168. [2022-11-23 03:58:55,131 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) [2022-11-23 03:58:55,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 185 transitions. [2022-11-23 03:58:55,132 INFO L240 hiAutomatonCegarLoop]: Abstraction has 168 states and 185 transitions. [2022-11-23 03:58:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:58:55,134 INFO L428 stractBuchiCegarLoop]: Abstraction has 168 states and 185 transitions. [2022-11-23 03:58:55,135 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-11-23 03:58:55,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 185 transitions. [2022-11-23 03:58:55,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-11-23 03:58:55,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:55,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:55,142 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 6, 5, 1, 1, 1] [2022-11-23 03:58:55,142 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-11-23 03:58:55,143 INFO L748 eck$LassoCheckResult]: Stem: 4116#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 4117#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4121#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4133#L12 assume !(main_~i~0#1 >= 10); 4129#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 4126#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4127#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4262#L12 assume !(main_~i~0#1 >= 10); 4261#L12-2 assume !(main_~i~0#1 <= 0); 4124#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4125#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4260#L12 assume !(main_~i~0#1 >= 10); 4258#L12-2 assume !(main_~i~0#1 <= 0); 4259#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4253#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4122#L12 assume !(main_~i~0#1 >= 10); 4108#L12-2 assume !(main_~i~0#1 <= 0); 4109#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4257#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4256#L12 assume !(main_~i~0#1 >= 10); 4255#L12-2 assume !(main_~i~0#1 <= 0); 4254#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4112#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4113#L12 assume !(main_~i~0#1 >= 10); 4275#L12-2 assume !(main_~i~0#1 <= 0); 4274#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4263#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4176#L12 [2022-11-23 03:58:55,145 INFO L750 eck$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 [2022-11-23 03:58:55,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:55,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1514411024, now seen corresponding path program 2 times [2022-11-23 03:58:55,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:55,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190779902] [2022-11-23 03:58:55,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:55,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:55,157 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:55,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:55,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:55,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1617023097, now seen corresponding path program 2 times [2022-11-23 03:58:55,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:55,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256202563] [2022-11-23 03:58:55,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:55,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:55,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:55,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:55,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:55,206 INFO L85 PathProgramCache]: Analyzing trace with hash -883489176, now seen corresponding path program 4 times [2022-11-23 03:58:55,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:55,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71901793] [2022-11-23 03:58:55,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:55,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 530 proven. 55 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-23 03:58:55,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:55,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71901793] [2022-11-23 03:58:55,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71901793] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:58:55,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200375675] [2022-11-23 03:58:55,426 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:58:55,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:58:55,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:55,428 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:58:55,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2022-11-23 03:58:55,503 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:58:55,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:58:55,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 03:58:55,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:55,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 530 proven. 55 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-23 03:58:55,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:58:55,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 530 proven. 55 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-23 03:58:55,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200375675] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:58:55,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:58:55,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-11-23 03:58:55,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708091075] [2022-11-23 03:58:55,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:58:56,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:58:56,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:58:56,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:58:56,354 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) [2022-11-23 03:58:56,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:58:56,484 INFO L93 Difference]: Finished difference Result 214 states and 229 transitions. [2022-11-23 03:58:56,484 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 229 transitions. [2022-11-23 03:58:56,486 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-11-23 03:58:56,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 208 states and 223 transitions. [2022-11-23 03:58:56,488 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2022-11-23 03:58:56,488 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2022-11-23 03:58:56,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 223 transitions. [2022-11-23 03:58:56,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:58:56,488 INFO L218 hiAutomatonCegarLoop]: Abstraction has 208 states and 223 transitions. [2022-11-23 03:58:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 223 transitions. [2022-11-23 03:58:56,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 167. [2022-11-23 03:58:56,492 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) [2022-11-23 03:58:56,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 182 transitions. [2022-11-23 03:58:56,493 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167 states and 182 transitions. [2022-11-23 03:58:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:58:56,494 INFO L428 stractBuchiCegarLoop]: Abstraction has 167 states and 182 transitions. [2022-11-23 03:58:56,494 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-11-23 03:58:56,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 182 transitions. [2022-11-23 03:58:56,496 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-11-23 03:58:56,496 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:58:56,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:58:56,497 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-23 03:58:56,497 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-11-23 03:58:56,497 INFO L748 eck$LassoCheckResult]: Stem: 5151#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 5152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 5153#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5166#L12 assume !(main_~i~0#1 >= 10); 5164#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 5162#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5161#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5204#L12 assume !(main_~i~0#1 >= 10); 5203#L12-2 assume !(main_~i~0#1 <= 0); 5202#L15-1 [2022-11-23 03:58:56,498 INFO L750 eck$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 [2022-11-23 03:58:56,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:56,498 INFO L85 PathProgramCache]: Analyzing trace with hash 644068259, now seen corresponding path program 3 times [2022-11-23 03:58:56,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:56,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412693838] [2022-11-23 03:58:56,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:56,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:56,503 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:56,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:56,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:56,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1888138361, now seen corresponding path program 3 times [2022-11-23 03:58:56,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:56,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045391522] [2022-11-23 03:58:56,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:56,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:56,520 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:56,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:56,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:56,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1126640613, now seen corresponding path program 5 times [2022-11-23 03:58:56,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:56,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276153917] [2022-11-23 03:58:56,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:56,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:56,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:56,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:57,222 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:57,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 03:58:57 BoogieIcfgContainer [2022-11-23 03:58:57,261 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-23 03:58:57,261 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:58:57,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:58:57,262 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:58:57,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:46" (3/4) ... [2022-11-23 03:58:57,265 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-23 03:58:57,316 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:58:57,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:58:57,317 INFO L158 Benchmark]: Toolchain (without parser) took 11616.39ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 132.0MB in the beginning and 64.8MB in the end (delta: 67.2MB). Peak memory consumption was 99.4MB. Max. memory is 16.1GB. [2022-11-23 03:58:57,317 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:58:57,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.20ms. Allocated memory is still 163.6MB. Free memory was 132.0MB in the beginning and 132.7MB in the end (delta: -727.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 03:58:57,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.12ms. Allocated memory is still 163.6MB. Free memory was 132.7MB in the beginning and 131.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:58:57,318 INFO L158 Benchmark]: Boogie Preprocessor took 29.94ms. Allocated memory is still 163.6MB. Free memory was 131.6MB in the beginning and 130.7MB in the end (delta: 893.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:58:57,319 INFO L158 Benchmark]: RCFGBuilder took 339.71ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 122.0MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 03:58:57,319 INFO L158 Benchmark]: BuchiAutomizer took 10757.45ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 121.1MB in the beginning and 67.9MB in the end (delta: 53.2MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. [2022-11-23 03:58:57,320 INFO L158 Benchmark]: Witness Printer took 54.85ms. Allocated memory is still 197.1MB. Free memory was 67.9MB in the beginning and 64.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:58:57,322 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.20ms. Allocated memory is still 163.6MB. Free memory was 132.0MB in the beginning and 132.7MB in the end (delta: -727.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.12ms. Allocated memory is still 163.6MB. Free memory was 132.7MB in the beginning and 131.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.94ms. Allocated memory is still 163.6MB. Free memory was 131.6MB in the beginning and 130.7MB in the end (delta: 893.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 339.71ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 122.0MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10757.45ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 121.1MB in the beginning and 67.9MB in the end (delta: 53.2MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. * Witness Printer took 54.85ms. Allocated memory is still 197.1MB. Free memory was 67.9MB in the beginning and 64.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 10.6s and 12 iterations. TraceHistogramMax:20. Analysis of lassos took 8.4s. Construction of modules took 0.4s. Büchi inclusion checks took 1.4s. 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, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 164 SdHoareTripleChecker+Invalid, 0.5s 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: 55ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s 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! [2022-11-23 03:58:57,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2022-11-23 03:58:57,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2022-11-23 03:58:57,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:57,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-11-23 03:58:58,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d63558-5bd8-47dc-b06f-0c7ce86309ee/bin/uautomizer-QkZJyEgLgS/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)