./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Sequence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/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_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Sequence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/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_c5aa385a-e012-47a9-9863-48a93656630f/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 95ccbbbc448c04acb65590867534531dd0d1de0ae6cfb9bc69f5ca4c10abccd4 --- 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 03:55:43,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:55:43,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:55:43,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:55:43,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:55:43,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:55:43,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:55:43,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:55:43,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:55:43,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:55:43,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:55:43,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:55:43,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:55:43,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:55:43,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:55:43,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:55:43,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:55:43,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:55:43,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:55:43,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:55:43,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:55:43,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:55:43,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:55:43,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:55:43,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:55:43,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:55:43,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:55:43,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:55:43,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:55:43,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:55:43,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:55:43,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:55:43,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:55:43,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:55:43,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:55:43,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:55:43,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:55:43,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:55:43,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:55:43,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:55:43,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:55:43,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-23 03:55:43,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:55:43,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:55:43,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:55:43,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:55:43,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:55:43,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:55:43,349 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:55:43,349 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-23 03:55:43,349 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-23 03:55:43,350 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-23 03:55:43,350 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-23 03:55:43,350 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-23 03:55:43,351 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-23 03:55:43,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:55:43,351 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:55:43,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:55:43,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:55:43,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-23 03:55:43,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-23 03:55:43,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-23 03:55:43,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:55:43,354 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-23 03:55:43,354 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:55:43,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-23 03:55:43,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:55:43,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:55:43,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:55:43,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:55:43,357 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-23 03:55:43,357 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_c5aa385a-e012-47a9-9863-48a93656630f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95ccbbbc448c04acb65590867534531dd0d1de0ae6cfb9bc69f5ca4c10abccd4 [2022-11-23 03:55:43,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:55:43,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:55:43,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:55:43,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:55:43,725 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:55:43,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-restricted-15/Sequence.c [2022-11-23 03:55:46,962 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:55:47,201 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:55:47,202 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/sv-benchmarks/c/termination-restricted-15/Sequence.c [2022-11-23 03:55:47,217 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/data/9c3ebac83/f51e004932bc49a6a8ccda670fc5c07b/FLAGcedf5795e [2022-11-23 03:55:47,237 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/data/9c3ebac83/f51e004932bc49a6a8ccda670fc5c07b [2022-11-23 03:55:47,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:55:47,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:55:47,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:55:47,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:55:47,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:55:47,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d52e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47, skipping insertion in model container [2022-11-23 03:55:47,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:55:47,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:55:47,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:55:47,503 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:55:47,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:55:47,533 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:55:47,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47 WrapperNode [2022-11-23 03:55:47,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:55:47,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:55:47,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:55:47,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:55:47,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,568 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-11-23 03:55:47,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:55:47,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:55:47,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:55:47,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:55:47,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,592 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:55:47,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:55:47,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:55:47,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:55:47,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2022-11-23 03:55:47,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:47,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:47,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:47,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-23 03:55:47,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:55:47,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:55:47,746 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:55:47,748 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:55:47,807 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:55:47,813 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:55:47,813 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 03:55:47,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:47 BoogieIcfgContainer [2022-11-23 03:55:47,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:55:47,817 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-23 03:55:47,817 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-23 03:55:47,821 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-23 03:55:47,822 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 03:55:47,822 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 03:55:47" (1/3) ... [2022-11-23 03:55:47,823 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@403a909d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 03:55:47, skipping insertion in model container [2022-11-23 03:55:47,823 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 03:55:47,824 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (2/3) ... [2022-11-23 03:55:47,824 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@403a909d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 03:55:47, skipping insertion in model container [2022-11-23 03:55:47,824 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 03:55:47,824 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:47" (3/3) ... [2022-11-23 03:55:47,826 INFO L332 chiAutomizerObserver]: Analyzing ICFG Sequence.c [2022-11-23 03:55:47,883 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-23 03:55:47,884 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-23 03:55:47,884 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-23 03:55:47,884 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-23 03:55:47,884 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-23 03:55:47,884 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-23 03:55:47,884 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-23 03:55:47,885 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-23 03:55:47,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 03:55:47,906 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-11-23 03:55:47,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:55:47,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:55:47,911 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-23 03:55:47,911 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-23 03:55:47,911 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-23 03:55:47,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 03:55:47,912 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-11-23 03:55:47,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:55:47,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:55:47,913 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-23 03:55:47,913 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-23 03:55:47,920 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0;main_~j~0#1 := 5; 8#L11-2true [2022-11-23 03:55:47,921 INFO L750 eck$LassoCheckResult]: Loop: 8#L11-2true assume !!(main_~i~0#1 < 100);main_~i~0#1 := 1 + main_~i~0#1; 8#L11-2true [2022-11-23 03:55:47,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:55:47,926 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-23 03:55:47,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:55:47,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193240564] [2022-11-23 03:55:47,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:55:47,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:55:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:55:48,019 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:55:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:55:48,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:55:48,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:55:48,049 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-11-23 03:55:48,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:55:48,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309791475] [2022-11-23 03:55:48,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:55:48,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:55:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:55:48,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:55:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:55:48,065 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:55:48,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:55:48,067 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-23 03:55:48,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:55:48,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87349824] [2022-11-23 03:55:48,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:55:48,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:55:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:55:48,077 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:55:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:55:48,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:55:48,154 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:55:48,155 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:55:48,155 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:55:48,155 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:55:48,155 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 03:55:48,155 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:48,156 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:55:48,156 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:55:48,156 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2022-11-23 03:55:48,156 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:55:48,156 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:55:48,217 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:55:48,240 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 03:55:48,245 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 03:55:48,355 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:55:48,356 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 03:55:48,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:48,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:48,362 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:48,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-23 03:55:48,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:55:48,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:55:48,389 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:55:48,389 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 03:55:48,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:48,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:48,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:48,394 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:48,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-23 03:55:48,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:55:48,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:55:48,420 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:55:48,420 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 03:55:48,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:48,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:48,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:48,426 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:48,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-23 03:55:48,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:55:48,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:55:48,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-23 03:55:48,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:48,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:48,457 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:48,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-23 03:55:48,463 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 03:55:48,463 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:55:48,512 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 03:55:48,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:48,520 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:55:48,520 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:55:48,521 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:55:48,521 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:55:48,521 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 03:55:48,521 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:48,521 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:55:48,521 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:55:48,521 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2022-11-23 03:55:48,521 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:55:48,521 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:55:48,524 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 03:55:48,529 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 03:55:48,535 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 03:55:48,604 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:55:48,608 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 03:55:48,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:48,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:48,610 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:48,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-23 03:55:48,615 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 03:55:48,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:55:48,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:55:48,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:55:48,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:55:48,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-23 03:55:48,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-23 03:55:48,649 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:55:48,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:48,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:48,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:48,658 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:48,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-23 03:55:48,662 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 03:55:48,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:55:48,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:55:48,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:55:48,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:55:48,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-23 03:55:48,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-23 03:55:48,691 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:55:48,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:48,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:48,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:48,701 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:48,717 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 03:55:48,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:55:48,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:55:48,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:55:48,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:55:48,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:55:48,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:55:48,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:55:48,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-23 03:55:48,751 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 03:55:48,758 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 03:55:48,759 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 03:55:48,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:48,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:48,767 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:48,774 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 03:55:48,774 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 03:55:48,774 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 03:55:48,775 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 199 Supporting invariants [] [2022-11-23 03:55:48,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-23 03:55:48,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-23 03:55:48,783 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 03:55:48,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:55:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:55:48,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:55:48,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:55:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:55:48,881 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:55:48,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:55:48,882 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 03:55:48,938 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-23 03:55:48,940 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:49,003 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 29 transitions. Complement of second has 5 states. [2022-11-23 03:55:49,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-23 03:55:49,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:49,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-11-23 03:55:49,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 1 letters. [2022-11-23 03:55:49,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:55:49,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 1 letters. [2022-11-23 03:55:49,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:55:49,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-23 03:55:49,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:55:49,015 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2022-11-23 03:55:49,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-23 03:55:49,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 6 states and 8 transitions. [2022-11-23 03:55:49,024 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-11-23 03:55:49,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-11-23 03:55:49,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2022-11-23 03:55:49,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:55:49,025 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-11-23 03:55:49,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2022-11-23 03:55:49,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2022-11-23 03:55:49,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) 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 03:55:49,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2022-11-23 03:55:49,052 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 7 transitions. [2022-11-23 03:55:49,052 INFO L428 stractBuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2022-11-23 03:55:49,052 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-23 03:55:49,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2022-11-23 03:55:49,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-23 03:55:49,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:55:49,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:55:49,056 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-23 03:55:49,056 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-23 03:55:49,056 INFO L748 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 61#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0;main_~j~0#1 := 5; 62#L11-2 assume !(main_~i~0#1 < 100); 59#L13-1 [2022-11-23 03:55:49,057 INFO L750 eck$LassoCheckResult]: Loop: 59#L13-1 assume !!(main_~j~0#1 < 21);main_~j~0#1 := 3 + main_~j~0#1; 59#L13-1 [2022-11-23 03:55:49,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:55:49,060 INFO L85 PathProgramCache]: Analyzing trace with hash 29862, now seen corresponding path program 1 times [2022-11-23 03:55:49,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:55:49,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130063015] [2022-11-23 03:55:49,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:55:49,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:55:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:55:49,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:55:49,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:55:49,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130063015] [2022-11-23 03:55:49,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130063015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:55:49,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:55:49,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:55:49,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923318607] [2022-11-23 03:55:49,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:55:49,130 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 03:55:49,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:55:49,135 INFO L85 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2022-11-23 03:55:49,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:55:49,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067506800] [2022-11-23 03:55:49,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:55:49,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:55:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:55:49,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:55:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:55:49,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:55:49,186 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:55:49,186 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:55:49,186 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:55:49,187 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:55:49,187 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 03:55:49,187 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:49,187 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:55:49,187 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:55:49,188 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2022-11-23 03:55:49,188 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:55:49,188 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:55:49,191 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:55:49,201 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 03:55:49,213 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 03:55:49,255 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:55:49,255 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 03:55:49,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:49,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:49,258 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:49,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:55:49,270 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:55:49,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-23 03:55:49,296 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:55:49,296 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 03:55:49,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:49,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:49,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:49,303 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:49,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:55:49,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:55:49,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-23 03:55:49,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:49,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:49,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:49,344 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:49,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-23 03:55:49,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 03:55:49,351 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:55:49,395 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 03:55:49,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:49,400 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:55:49,400 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:55:49,400 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:55:49,400 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:55:49,401 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 03:55:49,401 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:49,401 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:55:49,401 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:55:49,401 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2022-11-23 03:55:49,401 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:55:49,401 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:55:49,403 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 03:55:49,411 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 03:55:49,418 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 03:55:49,462 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:55:49,463 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 03:55:49,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:49,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:49,464 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:49,476 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 03:55:49,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-23 03:55:49,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:55:49,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:55:49,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:55:49,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:55:49,500 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-23 03:55:49,500 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-23 03:55:49,514 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:55:49,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:49,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:49,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:49,524 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:49,537 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 03:55:49,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:55:49,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:55:49,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:55:49,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:55:49,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:55:49,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:55:49,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:55:49,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-23 03:55:49,567 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 03:55:49,573 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 03:55:49,573 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 03:55:49,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:55:49,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:55:49,579 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:55:49,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-23 03:55:49,583 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 03:55:49,583 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 03:55:49,584 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 03:55:49,584 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 43 Supporting invariants [] [2022-11-23 03:55:49,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:49,593 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 03:55:49,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:55:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:55:49,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:55:49,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:55:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:55:49,628 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:55:49,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:55:49,630 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 03:55:49,632 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-23 03:55:49,632 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 03:55:49,643 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) Result 6 states and 8 transitions. Complement of second has 2 states. [2022-11-23 03:55:49,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-23 03:55:49,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 03:55:49,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2022-11-23 03:55:49,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2022-11-23 03:55:49,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:55:49,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2022-11-23 03:55:49,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:55:49,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2022-11-23 03:55:49,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:55:49,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2022-11-23 03:55:49,648 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 03:55:49,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2022-11-23 03:55:49,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-23 03:55:49,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-23 03:55:49,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-23 03:55:49,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:55:49,649 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:55:49,649 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:55:49,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:55:49,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:55:49,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:55:49,653 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:49,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:55:49,660 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-23 03:55:49,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-23 03:55:49,661 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 03:55:49,661 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 03:55:49,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-23 03:55:49,661 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-23 03:55:49,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-23 03:55:49,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:55:49,662 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:55:49,662 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:55:49,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:55:49,663 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:55:49,663 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-23 03:55:49,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-23 03:55:49,664 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 03:55:49,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-23 03:55:49,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 03:55:49 BoogieIcfgContainer [2022-11-23 03:55:49,677 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-23 03:55:49,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:55:49,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:55:49,678 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:55:49,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:47" (3/4) ... [2022-11-23 03:55:49,682 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 03:55:49,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:55:49,683 INFO L158 Benchmark]: Toolchain (without parser) took 2440.58ms. Allocated memory was 138.4MB in the beginning and 220.2MB in the end (delta: 81.8MB). Free memory was 76.3MB in the beginning and 130.4MB in the end (delta: -54.2MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2022-11-23 03:55:49,683 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 138.4MB. Free memory is still 109.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:55:49,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.24ms. Allocated memory was 138.4MB in the beginning and 220.2MB in the end (delta: 81.8MB). Free memory was 76.1MB in the beginning and 189.6MB in the end (delta: -113.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-11-23 03:55:49,688 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.18ms. Allocated memory is still 220.2MB. Free memory was 189.6MB in the beginning and 188.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:55:49,688 INFO L158 Benchmark]: Boogie Preprocessor took 22.84ms. Allocated memory is still 220.2MB. Free memory was 188.2MB in the beginning and 187.3MB in the end (delta: 972.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:55:49,690 INFO L158 Benchmark]: RCFGBuilder took 219.94ms. Allocated memory is still 220.2MB. Free memory was 187.2MB in the beginning and 184.2MB in the end (delta: 3.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-11-23 03:55:49,691 INFO L158 Benchmark]: BuchiAutomizer took 1860.26ms. Allocated memory is still 220.2MB. Free memory was 184.2MB in the beginning and 130.4MB in the end (delta: 53.8MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2022-11-23 03:55:49,691 INFO L158 Benchmark]: Witness Printer took 4.18ms. Allocated memory is still 220.2MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:55:49,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 138.4MB. Free memory is still 109.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.24ms. Allocated memory was 138.4MB in the beginning and 220.2MB in the end (delta: 81.8MB). Free memory was 76.1MB in the beginning and 189.6MB in the end (delta: -113.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.18ms. Allocated memory is still 220.2MB. Free memory was 189.6MB in the beginning and 188.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.84ms. Allocated memory is still 220.2MB. Free memory was 188.2MB in the beginning and 187.3MB in the end (delta: 972.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 219.94ms. Allocated memory is still 220.2MB. Free memory was 187.2MB in the beginning and 184.2MB in the end (delta: 3.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1860.26ms. Allocated memory is still 220.2MB. Free memory was 184.2MB in the beginning and 130.4MB in the end (delta: 53.8MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. * Witness Printer took 4.18ms. Allocated memory is still 220.2MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 40ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-23 03:55:49,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-11-23 03:55:49,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:50,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5aa385a-e012-47a9-9863-48a93656630f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE