./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-05-false.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_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/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_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-05-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/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_ccde0d25-63bc-4055-b9ea-2616b679ed7f/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 427e186785166c5ffd313a4d7c40939a92c57625bbdbf87d75735aadfc27c4d8 --- 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 10:26:59,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:26:59,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:26:59,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:26:59,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:26:59,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:26:59,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:26:59,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:26:59,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:26:59,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:26:59,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:26:59,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:26:59,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:26:59,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:26:59,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:26:59,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:26:59,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:26:59,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:26:59,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:26:59,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:26:59,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:26:59,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:26:59,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:26:59,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:26:59,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:26:59,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:26:59,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:26:59,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:26:59,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:26:59,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:26:59,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:26:59,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:26:59,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:26:59,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:26:59,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:26:59,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:26:59,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:26:59,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:26:59,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:26:59,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:26:59,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:26:59,822 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:26:59,878 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:26:59,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:26:59,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:26:59,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:26:59,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:26:59,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:26:59,886 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:26:59,887 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:26:59,887 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:26:59,887 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:26:59,888 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:26:59,889 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:26:59,889 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:26:59,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:26:59,890 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:26:59,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:26:59,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:26:59,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:26:59,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:26:59,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:26:59,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:26:59,892 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:26:59,892 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:26:59,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:26:59,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:26:59,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:26:59,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:26:59,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:26:59,897 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:26:59,897 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_ccde0d25-63bc-4055-b9ea-2616b679ed7f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 427e186785166c5ffd313a4d7c40939a92c57625bbdbf87d75735aadfc27c4d8 [2022-10-17 10:27:00,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:27:00,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:27:00,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:27:00,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:27:00,252 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:27:00,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-bwb/and-05-false.c [2022-10-17 10:27:00,328 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/data/28f6d42e0/f63d5f9c532d42ca8e10c411559cb855/FLAGef916b3f5 [2022-10-17 10:27:00,866 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:27:00,867 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/sv-benchmarks/c/termination-bwb/and-05-false.c [2022-10-17 10:27:00,872 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/data/28f6d42e0/f63d5f9c532d42ca8e10c411559cb855/FLAGef916b3f5 [2022-10-17 10:27:01,208 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/data/28f6d42e0/f63d5f9c532d42ca8e10c411559cb855 [2022-10-17 10:27:01,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:27:01,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:27:01,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:27:01,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:27:01,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:27:01,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26748e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01, skipping insertion in model container [2022-10-17 10:27:01,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:27:01,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:27:01,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:27:01,416 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:27:01,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:27:01,445 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:27:01,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01 WrapperNode [2022-10-17 10:27:01,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:27:01,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:27:01,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:27:01,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:27:01,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,482 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-10-17 10:27:01,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:27:01,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:27:01,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:27:01,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:27:01,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,503 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:27:01,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:27:01,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:27:01,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:27:01,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01" (1/1) ... [2022-10-17 10:27:01,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:01,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:01,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:01,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:27:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:27:01,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:27:01,657 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:27:01,660 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:27:01,776 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:27:01,785 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:27:01,785 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:27:01,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:27:01 BoogieIcfgContainer [2022-10-17 10:27:01,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:27:01,789 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:27:01,789 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:27:01,794 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:27:01,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:27:01,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:27:01" (1/3) ... [2022-10-17 10:27:01,797 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14d687a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:27:01, skipping insertion in model container [2022-10-17 10:27:01,797 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:27:01,797 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:27:01" (2/3) ... [2022-10-17 10:27:01,798 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14d687a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:27:01, skipping insertion in model container [2022-10-17 10:27:01,798 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:27:01,798 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:27:01" (3/3) ... [2022-10-17 10:27:01,800 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-05-false.c [2022-10-17 10:27:01,886 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:27:01,886 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:27:01,886 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:27:01,886 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:27:01,887 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:27:01,887 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:27:01,887 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:27:01,887 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:27:01,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 10:27:01,912 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:27:01,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:01,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:01,919 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:27:01,919 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:27:01,919 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:27:01,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 10:27:01,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:27:01,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:01,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:01,923 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:27:01,923 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:27:01,932 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L17-8true [2022-10-17 10:27:01,932 INFO L750 eck$LassoCheckResult]: Loop: 7#L17-8true assume !!(main_~x~0#1 <= main_~y~0#1 && main_~y~0#1 > 0); 3#L17true assume 0 == main_~x~0#1 - 1 || 0 == main_~y~0#1;main_~x~0#1 := 0; 7#L17-8true [2022-10-17 10:27:01,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:01,939 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:27:01,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:01,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725904035] [2022-10-17 10:27:01,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:01,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:02,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:02,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:02,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:02,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2022-10-17 10:27:02,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:02,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677381365] [2022-10-17 10:27:02,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:02,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:02,135 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:02,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:02,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:02,156 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-10-17 10:27:02,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:02,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431130970] [2022-10-17 10:27:02,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:02,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:02,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:02,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:02,361 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:27:02,362 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:27:02,362 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:27:02,362 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:27:02,363 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:27:02,363 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,363 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:27:02,363 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:27:02,364 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05-false.c_Iteration1_Loop [2022-10-17 10:27:02,364 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:27:02,365 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:27:02,387 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 10:27:02,415 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 10:27:02,485 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:27:02,486 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:27:02,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:27:02,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:27:02,502 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:27:02,538 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:27:02,538 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:27:02,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-10-17 10:27:02,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,564 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:27:02,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:27:02,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:27:02,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,622 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:27:02,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:27:02,649 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:27:02,687 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:27:02,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,727 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:27:02,727 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:27:02,727 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:27:02,727 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:27:02,727 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:27:02,728 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,728 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:27:02,728 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:27:02,728 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05-false.c_Iteration1_Loop [2022-10-17 10:27:02,728 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:27:02,729 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:27:02,730 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 10:27:02,742 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 10:27:02,798 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:27:02,805 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:27:02,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,812 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:27:02,820 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 10:27:02,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,852 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,881 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:27:02,883 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 10:27:02,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,909 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:27:02,915 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:27:02,916 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 10:27:02,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,920 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,926 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:27:02,927 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:27:02,927 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:27:02,928 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-10-17 10:27:02,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:27:02,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-10-17 10:27:02,963 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:27:02,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:03,010 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:27:03,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:03,026 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:27:03,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:03,047 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 10:27:03,091 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 10:27:03,094 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:27:03,164 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 57 transitions. Complement of second has 8 states. [2022-10-17 10:27:03,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-10-17 10:27:03,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:27:03,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2022-10-17 10:27:03,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 2 letters. Loop has 2 letters. [2022-10-17 10:27:03,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:03,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 4 letters. Loop has 2 letters. [2022-10-17 10:27:03,180 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:03,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 2 letters. Loop has 4 letters. [2022-10-17 10:27:03,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:03,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 57 transitions. [2022-10-17 10:27:03,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:27:03,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 16 states and 24 transitions. [2022-10-17 10:27:03,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-10-17 10:27:03,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-10-17 10:27:03,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 24 transitions. [2022-10-17 10:27:03,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:03,200 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 24 transitions. [2022-10-17 10:27:03,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 24 transitions. [2022-10-17 10:27:03,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-10-17 10:27:03,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 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 10:27:03,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 24 transitions. [2022-10-17 10:27:03,228 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 24 transitions. [2022-10-17 10:27:03,228 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2022-10-17 10:27:03,228 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:27:03,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 24 transitions. [2022-10-17 10:27:03,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:27:03,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:03,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:03,231 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:27:03,231 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:27:03,231 INFO L748 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 96#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 100#L17-8 assume !!(main_~x~0#1 <= main_~y~0#1 && main_~y~0#1 > 0); 88#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 89#L17-2 assume !(1 == main_~x~0#1 - 1 && (0 == main_~y~0#1 || 1 == main_~y~0#1)); 93#L17-4 assume !((0 == main_~x~0#1 - 1 || 1 == main_~x~0#1 - 1) && 1 == main_~y~0#1); 97#L17-6 assume !(main_~x~0#1 - 1 >= 0 && main_~y~0#1 >= 0);main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 98#L17-8 [2022-10-17 10:27:03,231 INFO L750 eck$LassoCheckResult]: Loop: 98#L17-8 assume !!(main_~x~0#1 <= main_~y~0#1 && main_~y~0#1 > 0); 99#L17 assume 0 == main_~x~0#1 - 1 || 0 == main_~y~0#1;main_~x~0#1 := 0; 98#L17-8 [2022-10-17 10:27:03,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:03,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725042, now seen corresponding path program 1 times [2022-10-17 10:27:03,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:03,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904054651] [2022-10-17 10:27:03,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:03,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:03,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:03,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:03,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:03,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 2 times [2022-10-17 10:27:03,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:03,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136508369] [2022-10-17 10:27:03,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:03,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:03,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:03,272 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:03,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:03,273 INFO L85 PathProgramCache]: Analyzing trace with hash 645010837, now seen corresponding path program 1 times [2022-10-17 10:27:03,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:03,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899125515] [2022-10-17 10:27:03,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:03,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:03,287 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:03,299 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:03,344 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:27:03,344 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:27:03,344 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:27:03,344 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:27:03,345 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:27:03,345 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,345 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:27:03,345 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:27:03,345 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05-false.c_Iteration2_Loop [2022-10-17 10:27:03,345 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:27:03,345 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:27:03,346 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 10:27:03,358 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 10:27:03,411 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:27:03,412 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:27:03,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,428 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:27:03,444 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:27:03,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:27:03,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:27:03,466 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:27:03,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,504 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:27:03,512 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:27:03,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:27:03,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,566 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:27:03,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:27:03,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:27:03,612 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:27:03,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,639 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:27:03,639 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:27:03,639 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:27:03,639 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:27:03,639 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:27:03,639 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,639 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:27:03,639 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:27:03,639 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05-false.c_Iteration2_Loop [2022-10-17 10:27:03,640 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:27:03,640 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:27:03,640 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 10:27:03,650 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 10:27:03,692 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:27:03,692 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:27:03,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,695 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:03,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:27:03,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,755 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:27:03,757 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 10:27:03,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,767 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:27:03,769 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:27:03,770 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 10:27:03,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,771 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:27:03,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,829 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:27:03,830 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:27:03,830 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:27:03,830 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-10-17 10:27:03,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,866 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:27:03,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:03,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:27:03,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:03,938 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:27:03,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:03,963 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 10:27:03,965 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 10:27:03,968 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:27:04,017 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 48 transitions. Complement of second has 6 states. [2022-10-17 10:27:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:27:04,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:27:04,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2022-10-17 10:27:04,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 7 letters. Loop has 2 letters. [2022-10-17 10:27:04,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:04,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 2 letters. [2022-10-17 10:27:04,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:04,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 7 letters. Loop has 4 letters. [2022-10-17 10:27:04,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:04,027 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 48 transitions. [2022-10-17 10:27:04,029 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:27:04,033 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 25 states and 37 transitions. [2022-10-17 10:27:04,034 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-10-17 10:27:04,035 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-10-17 10:27:04,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 37 transitions. [2022-10-17 10:27:04,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:04,035 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 37 transitions. [2022-10-17 10:27:04,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 37 transitions. [2022-10-17 10:27:04,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-10-17 10:27:04,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.48) internal successors, (37), 24 states have internal predecessors, (37), 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 10:27:04,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 37 transitions. [2022-10-17 10:27:04,044 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 37 transitions. [2022-10-17 10:27:04,044 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 37 transitions. [2022-10-17 10:27:04,044 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:27:04,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 37 transitions. [2022-10-17 10:27:04,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-10-17 10:27:04,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:04,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:04,051 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1] [2022-10-17 10:27:04,052 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:27:04,052 INFO L748 eck$LassoCheckResult]: Stem: 190#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 191#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 196#L17-8 assume !!(main_~x~0#1 <= main_~y~0#1 && main_~y~0#1 > 0); 203#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 202#L17-2 assume !(1 == main_~x~0#1 - 1 && (0 == main_~y~0#1 || 1 == main_~y~0#1)); 201#L17-4 assume !((0 == main_~x~0#1 - 1 || 1 == main_~x~0#1 - 1) && 1 == main_~y~0#1); 192#L17-6 assume !(main_~x~0#1 - 1 >= 0 && main_~y~0#1 >= 0);main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 193#L17-8 assume !!(main_~x~0#1 <= main_~y~0#1 && main_~y~0#1 > 0); 183#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 184#L17-2 assume !(1 == main_~x~0#1 - 1 && (0 == main_~y~0#1 || 1 == main_~y~0#1)); 188#L17-4 assume !((0 == main_~x~0#1 - 1 || 1 == main_~x~0#1 - 1) && 1 == main_~y~0#1); 197#L17-6 assume !(main_~x~0#1 - 1 >= 0 && main_~y~0#1 >= 0);main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 194#L17-8 [2022-10-17 10:27:04,053 INFO L750 eck$LassoCheckResult]: Loop: 194#L17-8 assume !!(main_~x~0#1 <= main_~y~0#1 && main_~y~0#1 > 0); 195#L17 assume 0 == main_~x~0#1 - 1 || 0 == main_~y~0#1;main_~x~0#1 := 0; 194#L17-8 [2022-10-17 10:27:04,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:04,059 INFO L85 PathProgramCache]: Analyzing trace with hash -165756637, now seen corresponding path program 2 times [2022-10-17 10:27:04,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:04,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862616803] [2022-10-17 10:27:04,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:04,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:04,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:04,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:04,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:04,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 3 times [2022-10-17 10:27:04,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:04,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74099240] [2022-10-17 10:27:04,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:04,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:04,115 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:04,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:04,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:04,120 INFO L85 PathProgramCache]: Analyzing trace with hash -378337850, now seen corresponding path program 2 times [2022-10-17 10:27:04,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:04,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649536823] [2022-10-17 10:27:04,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:04,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:04,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:04,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:04,190 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:27:04,191 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:27:04,191 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:27:04,191 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:27:04,191 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:27:04,191 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,191 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:27:04,191 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:27:04,192 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05-false.c_Iteration3_Loop [2022-10-17 10:27:04,192 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:27:04,192 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:27:04,193 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:04,199 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 10:27:04,236 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:27:04,236 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:27:04,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,243 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:27:04,247 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:27:04,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:27:04,263 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:27:04,263 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:27:04,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,308 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:27:04,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:27:04,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:27:04,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,391 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:27:04,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:27:04,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:27:04,423 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:27:04,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,468 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:27:04,468 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:27:04,468 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:27:04,469 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:27:04,469 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:27:04,469 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,469 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:27:04,469 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:27:04,469 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05-false.c_Iteration3_Loop [2022-10-17 10:27:04,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:27:04,470 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:27:04,470 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 10:27:04,476 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 10:27:04,505 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:27:04,505 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:27:04,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,507 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,522 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 10:27:04,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:04,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:04,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:04,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:27:04,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,589 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,595 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 10:27:04,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:04,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:04,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:04,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:27:04,627 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:27:04,631 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-10-17 10:27:04,631 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:27:04,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,633 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,640 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:27:04,640 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:27:04,640 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:27:04,641 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-10-17 10:27:04,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 10:27:04,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,669 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:27:04,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:04,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:27:04,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:04,735 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:27:04,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:04,751 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 10:27:04,752 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 10:27:04,752 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 37 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 10:27:04,783 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 37 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) Result 32 states and 46 transitions. Complement of second has 5 states. [2022-10-17 10:27:04,784 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 10:27:04,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 10:27:04,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2022-10-17 10:27:04,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 12 letters. Loop has 2 letters. [2022-10-17 10:27:04,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:04,786 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:27:04,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:04,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:27:04,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:04,856 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:27:04,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:04,877 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 10:27:04,878 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:27:04,878 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 37 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 10:27:04,907 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 37 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) Result 36 states and 54 transitions. Complement of second has 5 states. [2022-10-17 10:27:04,908 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 10:27:04,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 10:27:04,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2022-10-17 10:27:04,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 12 letters. Loop has 2 letters. [2022-10-17 10:27:04,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:04,910 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:27:04,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:04,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:27:04,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:04,979 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:27:04,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:04,995 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 10:27:04,997 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:27:04,997 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 37 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 10:27:05,043 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 37 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) Result 42 states and 61 transitions. Complement of second has 5 states. [2022-10-17 10:27:05,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:27:05,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 10:27:05,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2022-10-17 10:27:05,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 12 letters. Loop has 2 letters. [2022-10-17 10:27:05,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:05,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 14 letters. Loop has 2 letters. [2022-10-17 10:27:05,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:05,052 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 12 letters. Loop has 4 letters. [2022-10-17 10:27:05,052 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:05,052 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 61 transitions. [2022-10-17 10:27:05,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-10-17 10:27:05,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 29 states and 41 transitions. [2022-10-17 10:27:05,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-10-17 10:27:05,063 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-10-17 10:27:05,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 41 transitions. [2022-10-17 10:27:05,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:05,064 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 41 transitions. [2022-10-17 10:27:05,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 41 transitions. [2022-10-17 10:27:05,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 11. [2022-10-17 10:27:05,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 10 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 10:27:05,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2022-10-17 10:27:05,068 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2022-10-17 10:27:05,068 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2022-10-17 10:27:05,069 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:27:05,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2022-10-17 10:27:05,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-10-17 10:27:05,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:05,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:05,071 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:27:05,071 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-10-17 10:27:05,072 INFO L748 eck$LassoCheckResult]: Stem: 481#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 482#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 484#L17-8 [2022-10-17 10:27:05,072 INFO L750 eck$LassoCheckResult]: Loop: 484#L17-8 assume !!(main_~x~0#1 <= main_~y~0#1 && main_~y~0#1 > 0); 479#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 474#L17-2 assume !(1 == main_~x~0#1 - 1 && (0 == main_~y~0#1 || 1 == main_~y~0#1)); 475#L17-4 assume !((0 == main_~x~0#1 - 1 || 1 == main_~x~0#1 - 1) && 1 == main_~y~0#1); 483#L17-6 assume !(main_~x~0#1 - 1 >= 0 && main_~y~0#1 >= 0);main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 484#L17-8 [2022-10-17 10:27:05,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:05,072 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-10-17 10:27:05,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:05,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468616205] [2022-10-17 10:27:05,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:05,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:05,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:05,088 INFO L85 PathProgramCache]: Analyzing trace with hash 39285556, now seen corresponding path program 1 times [2022-10-17 10:27:05,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:05,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658901545] [2022-10-17 10:27:05,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:05,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:05,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:05,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725042, now seen corresponding path program 3 times [2022-10-17 10:27:05,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:05,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643839628] [2022-10-17 10:27:05,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:05,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:27:05 BoogieIcfgContainer [2022-10-17 10:27:05,211 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:27:05,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:27:05,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:27:05,212 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:27:05,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:27:01" (3/4) ... [2022-10-17 10:27:05,216 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-10-17 10:27:05,271 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:27:05,271 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:27:05,275 INFO L158 Benchmark]: Toolchain (without parser) took 4059.04ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 59.9MB in the beginning and 49.7MB in the end (delta: 10.1MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2022-10-17 10:27:05,276 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 86.0MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:27:05,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.26ms. Allocated memory is still 86.0MB. Free memory was 59.7MB in the beginning and 51.0MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:27:05,280 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.69ms. Allocated memory is still 86.0MB. Free memory was 50.8MB in the beginning and 49.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:27:05,281 INFO L158 Benchmark]: Boogie Preprocessor took 22.59ms. Allocated memory is still 86.0MB. Free memory was 49.6MB in the beginning and 48.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:27:05,282 INFO L158 Benchmark]: RCFGBuilder took 281.74ms. Allocated memory is still 86.0MB. Free memory was 48.4MB in the beginning and 39.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:27:05,283 INFO L158 Benchmark]: BuchiAutomizer took 3422.12ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 39.5MB in the beginning and 51.8MB in the end (delta: -12.2MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2022-10-17 10:27:05,284 INFO L158 Benchmark]: Witness Printer took 59.19ms. Allocated memory is still 125.8MB. Free memory was 50.9MB in the beginning and 49.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:27:05,290 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 86.0MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.26ms. Allocated memory is still 86.0MB. Free memory was 59.7MB in the beginning and 51.0MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.69ms. Allocated memory is still 86.0MB. Free memory was 50.8MB in the beginning and 49.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.59ms. Allocated memory is still 86.0MB. Free memory was 49.6MB in the beginning and 48.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 281.74ms. Allocated memory is still 86.0MB. Free memory was 48.4MB in the beginning and 39.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3422.12ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 39.5MB in the beginning and 51.8MB in the end (delta: -12.2MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * Witness Printer took 59.19ms. Allocated memory is still 125.8MB. Free memory was 50.9MB in the beginning and 49.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. The remainder module has 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 45 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq200 hnf87 smp100 dnf100 smp100 tf114 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 16]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L13] int x, y, res; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() Loop: [L16] COND TRUE x<=y && y > 0 [L17] x = (x-1)&y End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 16]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x, y, res; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() Loop: [L16] COND TRUE x<=y && y > 0 [L17] x = (x-1)&y End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 10:27:05,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:05,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-10-17 10:27:05,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccde0d25-63bc-4055-b9ea-2616b679ed7f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)