./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/java_Nested.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/java_Nested.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ --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 6f3c7109e3632c85dc9002b2a2bde96ba9bdc501efcd49505c298845bf1ea677 --- 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-dbf71c6-m [2022-10-17 11:08:08,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:08:08,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:08:08,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:08:08,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:08:08,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:08:08,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:08:08,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:08:08,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:08:08,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:08:08,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:08:08,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:08:08,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:08:08,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:08:08,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:08:08,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:08:08,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:08:08,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:08:08,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:08:08,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:08:08,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:08:08,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:08:08,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:08:08,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:08:08,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:08:08,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:08:08,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:08:08,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:08:08,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:08:08,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:08:08,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:08:08,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:08:08,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:08:08,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:08:08,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:08:08,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:08:08,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:08:08,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:08:08,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:08:08,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:08:08,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:08:08,594 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 11:08:08,655 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:08:08,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:08:08,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:08:08,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:08:08,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:08:08,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:08:08,662 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:08:08,662 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 11:08:08,663 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 11:08:08,663 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 11:08:08,664 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 11:08:08,664 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 11:08:08,665 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 11:08:08,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:08:08,665 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 11:08:08,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:08:08,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:08:08,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 11:08:08,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 11:08:08,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 11:08:08,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:08:08,667 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 11:08:08,667 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:08:08,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 11:08:08,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:08:08,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:08:08,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:08:08,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:08:08,671 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 11:08:08,671 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_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f3c7109e3632c85dc9002b2a2bde96ba9bdc501efcd49505c298845bf1ea677 [2022-10-17 11:08:08,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:08:08,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:08:08,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:08:08,969 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:08:08,969 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:08:08,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-restricted-15/java_Nested.c [2022-10-17 11:08:09,054 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/data/afe6cd84b/3906f92be93940cf87692b7e92e16644/FLAG91c6ef181 [2022-10-17 11:08:09,498 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:08:09,499 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/sv-benchmarks/c/termination-restricted-15/java_Nested.c [2022-10-17 11:08:09,504 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/data/afe6cd84b/3906f92be93940cf87692b7e92e16644/FLAG91c6ef181 [2022-10-17 11:08:09,897 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/data/afe6cd84b/3906f92be93940cf87692b7e92e16644 [2022-10-17 11:08:09,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:08:09,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:08:09,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:08:09,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:08:09,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:08:09,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:08:09" (1/1) ... [2022-10-17 11:08:09,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a6c26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:09, skipping insertion in model container [2022-10-17 11:08:09,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:08:09" (1/1) ... [2022-10-17 11:08:09,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:08:09,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:08:10,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:08:10,124 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:08:10,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:08:10,151 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:08:10,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10 WrapperNode [2022-10-17 11:08:10,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:08:10,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:08:10,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:08:10,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:08:10,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10" (1/1) ... [2022-10-17 11:08:10,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10" (1/1) ... [2022-10-17 11:08:10,187 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-10-17 11:08:10,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:08:10,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:08:10,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:08:10,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:08:10,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10" (1/1) ... [2022-10-17 11:08:10,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10" (1/1) ... [2022-10-17 11:08:10,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10" (1/1) ... [2022-10-17 11:08:10,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10" (1/1) ... [2022-10-17 11:08:10,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10" (1/1) ... [2022-10-17 11:08:10,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10" (1/1) ... [2022-10-17 11:08:10,207 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10" (1/1) ... [2022-10-17 11:08:10,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10" (1/1) ... [2022-10-17 11:08:10,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:08:10,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:08:10,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:08:10,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:08:10,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10" (1/1) ... [2022-10-17 11:08:10,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:10,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:10,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:10,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 11:08:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:08:10,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:08:10,377 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:08:10,379 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:08:10,448 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:08:10,455 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:08:10,456 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 11:08:10,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:08:10 BoogieIcfgContainer [2022-10-17 11:08:10,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:08:10,459 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 11:08:10,459 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 11:08:10,465 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 11:08:10,466 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 11:08:10,466 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 11:08:09" (1/3) ... [2022-10-17 11:08:10,467 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c739671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 11:08:10, skipping insertion in model container [2022-10-17 11:08:10,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 11:08:10,467 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:10" (2/3) ... [2022-10-17 11:08:10,467 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c739671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 11:08:10, skipping insertion in model container [2022-10-17 11:08:10,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 11:08:10,468 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:08:10" (3/3) ... [2022-10-17 11:08:10,469 INFO L332 chiAutomizerObserver]: Analyzing ICFG java_Nested.c [2022-10-17 11:08:10,527 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 11:08:10,527 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 11:08:10,527 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 11:08:10,527 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 11:08:10,527 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 11:08:10,528 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 11:08:10,528 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 11:08:10,528 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 11:08:10,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2022-10-17 11:08:10,552 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 11:08:10,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:08:10,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:08:10,558 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 11:08:10,558 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 11:08:10,559 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 11:08:10,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2022-10-17 11:08:10,560 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 11:08:10,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:08:10,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:08:10,561 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 11:08:10,561 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 11:08:10,568 INFO L748 eck$LassoCheckResult]: Stem: 5#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_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 4#L10-2true [2022-10-17 11:08:10,569 INFO L750 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 2#L12-2true assume !(main_~j~0#1 < 12); 6#L12-3true main_~i~0#1 := 1 + main_~i~0#1; 4#L10-2true [2022-10-17 11:08:10,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:10,575 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 11:08:10,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:10,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183047320] [2022-10-17 11:08:10,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:10,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:10,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:10,690 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:10,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:10,693 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2022-10-17 11:08:10,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:10,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936478366] [2022-10-17 11:08:10,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:10,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:10,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:10,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:10,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936478366] [2022-10-17 11:08:10,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936478366] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:08:10,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:08:10,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:08:10,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177296197] [2022-10-17 11:08:10,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:08:10,781 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 11:08:10,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:10,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:08:10,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:08:10,822 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) Second operand has 3 states, 3 states have (on average 1.0) 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) [2022-10-17 11:08:10,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:10,840 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2022-10-17 11:08:10,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2022-10-17 11:08:10,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 11:08:10,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2022-10-17 11:08:10,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-10-17 11:08:10,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-10-17 11:08:10,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2022-10-17 11:08:10,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:08:10,849 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-10-17 11:08:10,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2022-10-17 11:08:10,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-10-17 11:08:10,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 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) [2022-10-17 11:08:10,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2022-10-17 11:08:10,909 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-10-17 11:08:10,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:08:10,926 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-10-17 11:08:10,926 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 11:08:10,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2022-10-17 11:08:10,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 11:08:10,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:08:10,927 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:08:10,928 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 11:08:10,928 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-10-17 11:08:10,928 INFO L748 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 32#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 30#L10-2 [2022-10-17 11:08:10,928 INFO L750 eck$LassoCheckResult]: Loop: 30#L10-2 assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 28#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 29#L12-2 assume !(main_~j~0#1 < 12); 33#L12-3 main_~i~0#1 := 1 + main_~i~0#1; 30#L10-2 [2022-10-17 11:08:10,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:10,929 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-10-17 11:08:10,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:10,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263170777] [2022-10-17 11:08:10,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:10,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:10,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:10,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:10,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:10,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2022-10-17 11:08:10,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:10,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437041026] [2022-10-17 11:08:10,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:10,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:11,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:11,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:11,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437041026] [2022-10-17 11:08:11,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437041026] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 11:08:11,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631617453] [2022-10-17 11:08:11,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:11,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:08:11,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:11,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:08:11,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 11:08:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:11,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 11:08:11,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:08:11,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:11,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 11:08:11,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:11,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631617453] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 11:08:11,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 11:08:11,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-10-17 11:08:11,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738077881] [2022-10-17 11:08:11,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 11:08:11,284 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 11:08:11,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:11,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:08:11,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:08:11,286 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 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) [2022-10-17 11:08:11,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:11,325 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2022-10-17 11:08:11,325 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2022-10-17 11:08:11,326 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-10-17 11:08:11,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2022-10-17 11:08:11,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-10-17 11:08:11,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-10-17 11:08:11,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2022-10-17 11:08:11,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:08:11,328 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-10-17 11:08:11,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2022-10-17 11:08:11,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-10-17 11:08:11,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 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) [2022-10-17 11:08:11,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-10-17 11:08:11,333 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-10-17 11:08:11,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 11:08:11,335 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-10-17 11:08:11,336 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 11:08:11,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2022-10-17 11:08:11,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-10-17 11:08:11,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:08:11,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:08:11,339 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 11:08:11,339 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 1, 1, 1] [2022-10-17 11:08:11,339 INFO L748 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 74#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, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 72#L10-2 [2022-10-17 11:08:11,340 INFO L750 eck$LassoCheckResult]: Loop: 72#L10-2 assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 70#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 71#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 78#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 77#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 76#L12-2 assume !(main_~j~0#1 < 12); 75#L12-3 main_~i~0#1 := 1 + main_~i~0#1; 72#L10-2 [2022-10-17 11:08:11,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:11,341 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-10-17 11:08:11,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:11,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479764280] [2022-10-17 11:08:11,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:11,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:11,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:11,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:11,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:11,366 INFO L85 PathProgramCache]: Analyzing trace with hash -787882000, now seen corresponding path program 2 times [2022-10-17 11:08:11,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:11,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945067559] [2022-10-17 11:08:11,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:11,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:11,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:08:11,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945067559] [2022-10-17 11:08:11,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945067559] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 11:08:11,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044465997] [2022-10-17 11:08:11,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 11:08:11,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:08:11,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:11,532 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:08:11,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 11:08:11,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 11:08:11,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 11:08:11,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 11:08:11,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:08:11,634 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:11,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 11:08:11,738 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:11,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044465997] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 11:08:11,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 11:08:11,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-10-17 11:08:11,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987510057] [2022-10-17 11:08:11,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 11:08:11,740 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 11:08:11,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:08:11,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 11:08:11,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-17 11:08:11,741 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 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) [2022-10-17 11:08:11,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:08:11,764 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-10-17 11:08:11,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2022-10-17 11:08:11,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-10-17 11:08:11,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 15 transitions. [2022-10-17 11:08:11,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-10-17 11:08:11,767 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-10-17 11:08:11,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 15 transitions. [2022-10-17 11:08:11,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:08:11,767 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-10-17 11:08:11,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 15 transitions. [2022-10-17 11:08:11,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-10-17 11:08:11,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 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) [2022-10-17 11:08:11,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-10-17 11:08:11,770 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-10-17 11:08:11,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 11:08:11,772 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-10-17 11:08:11,772 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 11:08:11,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 15 transitions. [2022-10-17 11:08:11,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-10-17 11:08:11,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:08:11,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:08:11,774 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 11:08:11,774 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [9, 1, 1, 1] [2022-10-17 11:08:11,775 INFO L748 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 145#L10-2 [2022-10-17 11:08:11,775 INFO L750 eck$LassoCheckResult]: Loop: 145#L10-2 assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 143#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 144#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 156#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 155#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 154#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 153#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 152#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 151#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 150#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 149#L12-2 assume !(main_~j~0#1 < 12); 148#L12-3 main_~i~0#1 := 1 + main_~i~0#1; 145#L10-2 [2022-10-17 11:08:11,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:11,776 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2022-10-17 11:08:11,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:11,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592693696] [2022-10-17 11:08:11,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:11,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:11,782 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:11,786 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:11,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash -219093776, now seen corresponding path program 3 times [2022-10-17 11:08:11,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:11,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900961924] [2022-10-17 11:08:11,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:11,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:11,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:11,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:11,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:11,883 INFO L85 PathProgramCache]: Analyzing trace with hash 995055026, now seen corresponding path program 1 times [2022-10-17 11:08:11,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:11,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358319641] [2022-10-17 11:08:11,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:11,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:11,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:11,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:12,278 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:08:12,279 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:08:12,279 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:08:12,279 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:08:12,279 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 11:08:12,280 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:12,280 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:08:12,280 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:08:12,280 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Nested.c_Iteration4_Loop [2022-10-17 11:08:12,280 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:08:12,280 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:08:12,299 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:12,309 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:12,313 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:12,316 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:12,322 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:12,389 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:08:12,389 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 11:08:12,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:12,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:12,394 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:12,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 11:08:12,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:08:12,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:12,437 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:08:12,437 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: [] [2022-10-17 11:08:12,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:12,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:12,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:12,486 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:12,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:08:12,501 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:12,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 11:08:12,530 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:08:12,530 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: [] [2022-10-17 11:08:12,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:12,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:12,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:12,564 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:12,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 11:08:12,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:08:12,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:12,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:12,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:12,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:12,601 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:12,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 11:08:12,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 11:08:12,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:12,629 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:08:12,630 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=10}, {ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=-1}] Lambdas: [1, 13, 1] Nus: [1, 0] [2022-10-17 11:08:12,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:12,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:12,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:12,659 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:12,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 11:08:12,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:08:12,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:12,680 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:08:12,680 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=12} Honda state: {ULTIMATE.start_main_~j~0#1=12} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 11:08:12,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:12,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:12,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:12,704 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:12,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 11:08:12,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:08:12,709 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:12,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:12,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:12,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:12,746 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:12,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 11:08:12,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 11:08:12,749 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:12,798 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 11:08:12,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:12,803 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:08:12,804 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:08:12,804 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:08:12,804 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:08:12,804 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 11:08:12,804 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:12,804 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:08:12,804 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:08:12,804 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Nested.c_Iteration4_Loop [2022-10-17 11:08:12,804 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:08:12,804 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:08:12,806 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:12,822 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:12,825 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:12,831 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:12,834 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:12,925 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:08:12,930 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 11:08:12,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:12,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:12,933 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:12,943 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 [2022-10-17 11:08:12,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:08:12,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:08:12,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:08:12,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:08:12,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:08:12,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 11:08:12,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:08:12,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 11:08:12,982 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 11:08:13,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-10-17 11:08:13,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:13,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:13,012 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:13,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 11:08:13,021 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 [2022-10-17 11:08:13,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:08:13,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:08:13,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:08:13,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:08:13,041 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 11:08:13,041 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 11:08:13,061 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 11:08:13,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:13,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:13,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:13,102 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:13,108 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 [2022-10-17 11:08:13,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:08:13,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:08:13,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:08:13,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:08:13,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:08:13,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 11:08:13,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:08:13,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 11:08:13,137 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 11:08:13,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:13,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:13,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:13,176 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:13,182 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 [2022-10-17 11:08:13,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:08:13,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:08:13,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:08:13,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:08:13,201 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 11:08:13,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 11:08:13,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 11:08:13,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 11:08:13,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:13,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:13,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:13,237 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:13,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 11:08:13,238 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 [2022-10-17 11:08:13,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:08:13,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:08:13,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:08:13,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:08:13,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:08:13,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 11:08:13,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:08:13,261 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 11:08:13,264 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 11:08:13,264 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 11:08:13,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:13,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:13,266 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:13,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 11:08:13,271 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 11:08:13,271 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 11:08:13,271 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 11:08:13,272 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 [] [2022-10-17 11:08:13,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:13,295 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 11:08:13,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:13,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:08:13,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:08:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:13,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:08:13,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:08:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-17 11:08:13,520 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 [2022-10-17 11:08:13,523 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 15 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-10-17 11:08:13,566 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 15 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 26 states and 29 transitions. Complement of second has 4 states. [2022-10-17 11:08:13,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 11:08:13,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-10-17 11:08:13,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-10-17 11:08:13,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 12 letters. [2022-10-17 11:08:13,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:08:13,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 14 letters. Loop has 12 letters. [2022-10-17 11:08:13,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:08:13,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 24 letters. [2022-10-17 11:08:13,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:08:13,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2022-10-17 11:08:13,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-10-17 11:08:13,581 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 28 transitions. [2022-10-17 11:08:13,582 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-10-17 11:08:13,582 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-10-17 11:08:13,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2022-10-17 11:08:13,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 11:08:13,582 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-10-17 11:08:13,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2022-10-17 11:08:13,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2022-10-17 11:08:13,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 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) [2022-10-17 11:08:13,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-10-17 11:08:13,589 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-10-17 11:08:13,589 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-10-17 11:08:13,589 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 11:08:13,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2022-10-17 11:08:13,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-10-17 11:08:13,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:08:13,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:08:13,590 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 11:08:13,591 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-10-17 11:08:13,591 INFO L748 eck$LassoCheckResult]: Stem: 249#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 250#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 247#L10-2 assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 244#L12-2 [2022-10-17 11:08:13,591 INFO L750 eck$LassoCheckResult]: Loop: 244#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 244#L12-2 [2022-10-17 11:08:13,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:13,592 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-10-17 11:08:13,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:13,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620609706] [2022-10-17 11:08:13,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:13,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:13,611 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:13,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:13,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:13,614 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2022-10-17 11:08:13,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:13,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383087368] [2022-10-17 11:08:13,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:13,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:13,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:13,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:13,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:13,631 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2022-10-17 11:08:13,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:13,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865316333] [2022-10-17 11:08:13,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:13,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:13,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:13,649 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:13,679 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:08:13,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:08:13,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:08:13,679 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:08:13,679 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 11:08:13,679 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:13,679 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:08:13,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:08:13,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Nested.c_Iteration5_Loop [2022-10-17 11:08:13,680 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:08:13,680 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:08:13,682 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:13,685 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:13,698 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:13,703 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:13,756 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:08:13,756 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 11:08:13,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:13,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:13,757 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:13,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:08:13,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:13,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 11:08:13,794 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:08:13,795 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: [] [2022-10-17 11:08:13,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:13,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:13,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:13,825 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:13,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 11:08:13,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:08:13,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:13,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:13,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:13,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:13,887 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:13,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 11:08:13,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:13,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 11:08:13,938 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 11:08:13,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:13,940 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:08:13,941 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:08:13,941 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:08:13,941 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:08:13,941 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 11:08:13,941 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:13,941 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:08:13,941 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:08:13,941 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Nested.c_Iteration5_Loop [2022-10-17 11:08:13,941 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:08:13,941 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:08:13,942 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:13,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:13,959 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:13,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:14,020 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:08:14,020 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 11:08:14,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:14,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:14,022 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:14,038 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 [2022-10-17 11:08:14,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:08:14,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:08:14,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:08:14,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:08:14,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 11:08:14,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 11:08:14,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-10-17 11:08:14,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 11:08:14,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:14,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:14,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:14,111 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:14,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-10-17 11:08:14,118 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 [2022-10-17 11:08:14,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:08:14,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:08:14,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:08:14,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:08:14,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:08:14,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 11:08:14,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:08:14,145 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 11:08:14,149 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 11:08:14,150 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 11:08:14,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:14,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:14,152 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:14,162 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 11:08:14,162 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 11:08:14,162 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 11:08:14,162 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 23 Supporting invariants [] [2022-10-17 11:08:14,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-10-17 11:08:14,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:14,204 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 11:08:14,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:14,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:08:14,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:08:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:14,245 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:08:14,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:08:14,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:14,247 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 [2022-10-17 11:08:14,247 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 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) [2022-10-17 11:08:14,266 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. 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 32 states and 37 transitions. Complement of second has 5 states. [2022-10-17 11:08:14,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 11:08:14,268 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) [2022-10-17 11:08:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-10-17 11:08:14,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2022-10-17 11:08:14,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:08:14,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2022-10-17 11:08:14,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:08:14,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2022-10-17 11:08:14,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:08:14,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2022-10-17 11:08:14,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-10-17 11:08:14,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 28 states and 32 transitions. [2022-10-17 11:08:14,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-10-17 11:08:14,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2022-10-17 11:08:14,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2022-10-17 11:08:14,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 11:08:14,274 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-10-17 11:08:14,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2022-10-17 11:08:14,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 16. [2022-10-17 11:08:14,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.125) internal successors, (18), 15 states have internal predecessors, (18), 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) [2022-10-17 11:08:14,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-10-17 11:08:14,277 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-10-17 11:08:14,277 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-10-17 11:08:14,277 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 11:08:14,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 18 transitions. [2022-10-17 11:08:14,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-10-17 11:08:14,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:08:14,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:08:14,281 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 2, 1, 1, 1, 1] [2022-10-17 11:08:14,281 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-10-17 11:08:14,282 INFO L748 eck$LassoCheckResult]: Stem: 328#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 329#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 326#L10-2 assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 324#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 325#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 338#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 337#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 336#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 335#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 334#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 333#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 332#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 331#L12-2 assume !(main_~j~0#1 < 12); 330#L12-3 main_~i~0#1 := 1 + main_~i~0#1; 327#L10-2 assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 323#L12-2 [2022-10-17 11:08:14,282 INFO L750 eck$LassoCheckResult]: Loop: 323#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 323#L12-2 [2022-10-17 11:08:14,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:14,282 INFO L85 PathProgramCache]: Analyzing trace with hash 781934745, now seen corresponding path program 2 times [2022-10-17 11:08:14,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:14,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369481722] [2022-10-17 11:08:14,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:14,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:14,322 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:14,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:14,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:14,351 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2022-10-17 11:08:14,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:14,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973795603] [2022-10-17 11:08:14,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:14,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:14,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:14,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:14,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:14,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1529826661, now seen corresponding path program 3 times [2022-10-17 11:08:14,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:08:14,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351279189] [2022-10-17 11:08:14,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:08:14,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:08:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:14,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:08:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:08:14,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:08:14,443 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:08:14,444 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:08:14,444 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:08:14,444 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:08:14,444 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 11:08:14,444 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:14,444 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:08:14,445 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:08:14,445 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Nested.c_Iteration6_Loop [2022-10-17 11:08:14,445 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:08:14,445 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:08:14,446 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:14,452 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:14,458 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:14,461 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:14,513 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:08:14,513 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 11:08:14,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:14,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:14,515 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:14,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:08:14,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:14,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-10-17 11:08:14,539 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:08:14,540 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: [] [2022-10-17 11:08:14,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:14,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:14,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:14,566 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:14,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-10-17 11:08:14,568 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:08:14,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:14,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:14,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:14,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:14,599 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:14,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-10-17 11:08:14,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 11:08:14,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:08:14,672 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 11:08:14,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:14,683 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:08:14,683 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:08:14,683 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:08:14,683 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:08:14,684 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 11:08:14,684 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:14,684 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:08:14,684 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:08:14,684 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Nested.c_Iteration6_Loop [2022-10-17 11:08:14,684 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:08:14,684 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:08:14,685 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:14,691 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:14,694 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:14,698 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:08:14,764 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:08:14,764 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 11:08:14,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:14,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:14,765 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:14,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-10-17 11:08:14,833 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 [2022-10-17 11:08:14,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-10-17 11:08:14,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:08:14,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:08:14,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:08:14,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:08:14,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:08:14,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 11:08:14,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:08:14,868 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 11:08:14,871 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 11:08:14,871 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 11:08:14,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:14,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:14,885 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:14,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:14,890 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 11:08:14,890 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 11:08:14,890 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 11:08:14,890 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 23 Supporting invariants [] [2022-10-17 11:08:14,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-10-17 11:08:14,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:14,930 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 11:08:14,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:14,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:08:14,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:08:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:15,010 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:08:15,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:08:15,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:15,012 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 [2022-10-17 11:08:15,012 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-10-17 11:08:15,039 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 30 states and 34 transitions. Complement of second has 5 states. [2022-10-17 11:08:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 11:08:15,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-10-17 11:08:15,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-10-17 11:08:15,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 15 letters. Loop has 1 letters. [2022-10-17 11:08:15,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:08:15,043 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 11:08:15,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:15,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:08:15,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:08:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:15,129 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:08:15,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:08:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:15,130 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-10-17 11:08:15,131 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-10-17 11:08:15,149 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 30 states and 34 transitions. Complement of second has 5 states. [2022-10-17 11:08:15,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 11:08:15,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-10-17 11:08:15,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-10-17 11:08:15,153 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 15 letters. Loop has 1 letters. [2022-10-17 11:08:15,153 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:08:15,153 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 11:08:15,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:08:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:15,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:08:15,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:08:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:08:15,227 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:08:15,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:08:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:08:15,228 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 1 loop predicates [2022-10-17 11:08:15,228 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-10-17 11:08:15,240 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 19 states and 21 transitions. Complement of second has 4 states. [2022-10-17 11:08:15,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 11:08:15,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-10-17 11:08:15,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-10-17 11:08:15,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 15 letters. Loop has 1 letters. [2022-10-17 11:08:15,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:08:15,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 16 letters. Loop has 1 letters. [2022-10-17 11:08:15,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:08:15,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 15 letters. Loop has 2 letters. [2022-10-17 11:08:15,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:08:15,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 21 transitions. [2022-10-17 11:08:15,259 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 11:08:15,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2022-10-17 11:08:15,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 11:08:15,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 11:08:15,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 11:08:15,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:08:15,262 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 11:08:15,262 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 11:08:15,262 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 11:08:15,262 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-10-17 11:08:15,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-10-17 11:08:15,262 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 11:08:15,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-10-17 11:08:15,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 11:08:15 BoogieIcfgContainer [2022-10-17 11:08:15,272 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 11:08:15,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 11:08:15,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 11:08:15,273 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 11:08:15,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:08:10" (3/4) ... [2022-10-17 11:08:15,276 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 11:08:15,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 11:08:15,278 INFO L158 Benchmark]: Toolchain (without parser) took 5376.74ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 63.8MB in the beginning and 88.7MB in the end (delta: -24.8MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-10-17 11:08:15,283 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:08:15,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.69ms. Allocated memory is still 107.0MB. Free memory was 63.6MB in the beginning and 83.6MB in the end (delta: -20.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 11:08:15,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.08ms. Allocated memory is still 107.0MB. Free memory was 83.6MB in the beginning and 82.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:08:15,287 INFO L158 Benchmark]: Boogie Preprocessor took 21.81ms. Allocated memory is still 107.0MB. Free memory was 82.5MB in the beginning and 81.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:08:15,287 INFO L158 Benchmark]: RCFGBuilder took 247.44ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 72.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 11:08:15,287 INFO L158 Benchmark]: BuchiAutomizer took 4812.95ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 72.5MB in the beginning and 88.7MB in the end (delta: -16.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2022-10-17 11:08:15,289 INFO L158 Benchmark]: Witness Printer took 5.00ms. Allocated memory is still 134.2MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:08:15,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.69ms. Allocated memory is still 107.0MB. Free memory was 63.6MB in the beginning and 83.6MB in the end (delta: -20.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.08ms. Allocated memory is still 107.0MB. Free memory was 83.6MB in the beginning and 82.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.81ms. Allocated memory is still 107.0MB. Free memory was 82.5MB in the beginning and 81.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 247.44ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 72.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4812.95ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 72.5MB in the beginning and 88.7MB in the end (delta: -16.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Witness Printer took 5.00ms. Allocated memory is still 134.2MB. Free memory is still 88.7MB. 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 19 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 23 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * j + 23 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 7 iterations. TraceHistogramMax:9. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 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, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 45/45 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 46 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax171 hnf100 lsp34 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-10-17 11:08:15,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:15,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:15,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 11:08:15,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3897ee-351c-4b75-9fa9-5a0564274943/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE