./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be --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 faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:14:08,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:14:08,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:14:08,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:14:08,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:14:08,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:14:08,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:14:08,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:14:08,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:14:08,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:14:08,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:14:08,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:14:08,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:14:08,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:14:08,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:14:08,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:14:08,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:14:08,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:14:08,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:14:08,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:14:08,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:14:08,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:14:08,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:14:08,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:14:08,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:14:08,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:14:08,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:14:08,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:14:08,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:14:08,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:14:08,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:14:08,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:14:08,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:14:08,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:14:08,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:14:08,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:14:08,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:14:08,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:14:08,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:14:08,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:14:08,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:14:08,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 20:14:08,862 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:14:08,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:14:08,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:14:08,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:14:08,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:14:08,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:14:08,866 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:14:08,866 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:14:08,867 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:14:08,867 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:14:08,867 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:14:08,868 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:14:08,868 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:14:08,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:14:08,869 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:14:08,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:14:08,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:14:08,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:14:08,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:14:08,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:14:08,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:14:08,871 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:14:08,871 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:14:08,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:14:08,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:14:08,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:14:08,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:14:08,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:14:08,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:14:08,875 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:14:08,875 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_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c [2021-10-21 20:14:09,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:14:09,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:14:09,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:14:09,195 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:14:09,196 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:14:09,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2021-10-21 20:14:09,307 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/data/ea7f4d509/545d616ecb8d4d5eb38db0c3861e942f/FLAGcc73fdbee [2021-10-21 20:14:09,833 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:14:09,833 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2021-10-21 20:14:09,839 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/data/ea7f4d509/545d616ecb8d4d5eb38db0c3861e942f/FLAGcc73fdbee [2021-10-21 20:14:10,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/data/ea7f4d509/545d616ecb8d4d5eb38db0c3861e942f [2021-10-21 20:14:10,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:14:10,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:14:10,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:14:10,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:14:10,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:14:10,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:14:10" (1/1) ... [2021-10-21 20:14:10,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e7befd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10, skipping insertion in model container [2021-10-21 20:14:10,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:14:10" (1/1) ... [2021-10-21 20:14:10,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:14:10,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:14:10,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:14:10,474 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:14:10,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:14:10,506 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:14:10,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10 WrapperNode [2021-10-21 20:14:10,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:14:10,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:14:10,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:14:10,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:14:10,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10" (1/1) ... [2021-10-21 20:14:10,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10" (1/1) ... [2021-10-21 20:14:10,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:14:10,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:14:10,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:14:10,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:14:10,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10" (1/1) ... [2021-10-21 20:14:10,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10" (1/1) ... [2021-10-21 20:14:10,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10" (1/1) ... [2021-10-21 20:14:10,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10" (1/1) ... [2021-10-21 20:14:10,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10" (1/1) ... [2021-10-21 20:14:10,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10" (1/1) ... [2021-10-21 20:14:10,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10" (1/1) ... [2021-10-21 20:14:10,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:14:10,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:14:10,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:14:10,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:14:10,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10" (1/1) ... [2021-10-21 20:14:10,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:10,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:10,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:10,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:14:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:14:10,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:14:10,805 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:14:10,805 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 20:14:10,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:14:10 BoogieIcfgContainer [2021-10-21 20:14:10,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:14:10,809 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:14:10,809 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:14:10,813 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:14:10,814 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:14:10,815 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:14:10" (1/3) ... [2021-10-21 20:14:10,816 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@610db948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:14:10, skipping insertion in model container [2021-10-21 20:14:10,817 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:14:10,817 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:10" (2/3) ... [2021-10-21 20:14:10,818 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@610db948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:14:10, skipping insertion in model container [2021-10-21 20:14:10,818 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:14:10,818 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:14:10" (3/3) ... [2021-10-21 20:14:10,820 INFO L389 chiAutomizerObserver]: Analyzing ICFG McCarthyIterative.c [2021-10-21 20:14:10,877 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:14:10,877 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:14:10,877 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:14:10,878 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:14:10,878 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:14:10,878 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:14:10,878 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:14:10,878 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:14:10,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2021-10-21 20:14:10,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:10,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:10,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:10,924 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 20:14:10,924 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:14:10,924 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:14:10,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2021-10-21 20:14:10,926 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:10,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:10,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:10,927 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 20:14:10,927 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:14:10,935 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 3#L12-2true [2021-10-21 20:14:10,936 INFO L793 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~c~0 > 0); 8#L12true assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 3#L12-2true [2021-10-21 20:14:10,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:10,943 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-21 20:14:10,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:10,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430550000] [2021-10-21 20:14:10,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:10,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:11,050 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:11,073 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:11,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:11,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-21 20:14:11,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:11,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316978336] [2021-10-21 20:14:11,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:11,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:11,093 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:11,100 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:11,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:11,103 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-21 20:14:11,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:11,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56715978] [2021-10-21 20:14:11,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:11,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:11,115 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:11,124 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:11,220 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:11,221 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:11,221 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:11,222 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:11,222 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:14:11,222 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:11,223 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:11,223 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:11,223 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2021-10-21 20:14:11,223 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:11,224 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:11,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:11,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:11,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:11,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:11,428 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:11,429 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:14:11,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:11,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:11,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:11,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:11,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:11,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:14:11,507 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:11,507 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:14:11,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:11,554 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:11,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:11,557 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:11,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:14:11,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:11,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:11,591 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:11,592 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:14:11,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-21 20:14:11,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:11,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:11,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:11,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:14:11,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:11,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:11,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:11,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:11,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:11,697 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:11,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:14:11,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:11,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:11,807 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:14:11,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:11,818 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:11,818 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:11,818 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:11,819 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:11,819 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:11,819 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:11,819 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:11,819 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:11,819 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2021-10-21 20:14:11,820 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:11,820 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:11,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:11,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:11,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:11,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:11,921 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:11,927 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:11,929 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:11,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:11,931 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:11,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:14:11,953 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 [2021-10-21 20:14:11,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:11,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:11,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:11,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:11,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:11,980 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:12,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:12,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:12,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:12,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:12,063 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:12,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:14:12,068 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 [2021-10-21 20:14:12,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:12,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:12,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:12,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:12,092 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:12,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:12,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:12,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:12,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:12,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:12,169 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:12,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:14:12,172 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 [2021-10-21 20:14:12,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:12,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:12,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:12,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:12,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:12,184 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:12,184 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:12,197 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:12,203 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:14:12,203 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 20:14:12,205 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:12,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:12,207 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:12,227 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:12,228 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:14:12,228 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:12,228 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-21 20:14:12,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:14:12,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:12,271 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:14:12,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:12,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:12,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:12,334 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:14:12,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:12,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:12,379 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 20:14:12,381 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:12,440 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 30 transitions. Complement of second has 6 states. [2021-10-21 20:14:12,441 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 [2021-10-21 20:14:12,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:12,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-21 20:14:12,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-21 20:14:12,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:12,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 20:14:12,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:12,449 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-21 20:14:12,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:12,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-21 20:14:12,460 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:12,465 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-21 20:14:12,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-21 20:14:12,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-21 20:14:12,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-21 20:14:12,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:12,470 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 20:14:12,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-21 20:14:12,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-21 20:14:12,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2021-10-21 20:14:12,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-21 20:14:12,498 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 20:14:12,498 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 20:14:12,498 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:14:12,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-21 20:14:12,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:12,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:12,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:12,500 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 20:14:12,500 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:14:12,500 INFO L791 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 69#L12-2 assume !!(main_~c~0 > 0); 67#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 63#L12-2 [2021-10-21 20:14:12,501 INFO L793 eck$LassoCheckResult]: Loop: 63#L12-2 assume !!(main_~c~0 > 0); 64#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 63#L12-2 [2021-10-21 20:14:12,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:12,502 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-10-21 20:14:12,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:12,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436141544] [2021-10-21 20:14:12,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:12,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:12,511 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:12,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:12,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:12,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-10-21 20:14:12,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:12,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338732561] [2021-10-21 20:14:12,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:12,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:12,528 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:12,533 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:12,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:12,535 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2021-10-21 20:14:12,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:12,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381081130] [2021-10-21 20:14:12,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:12,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:12,546 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:12,556 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:12,591 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:12,592 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:12,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:12,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:12,592 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:14:12,592 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:12,593 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:12,593 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:12,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2021-10-21 20:14:12,593 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:12,593 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:12,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:12,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:12,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:12,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:12,679 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:12,679 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:14:12,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:12,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:12,695 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:12,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:12,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:12,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:14:12,720 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:12,720 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:14:12,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:12,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:12,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:12,770 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:12,781 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:12,781 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:12,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:14:12,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:12,854 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:12,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:12,855 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:12,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:14:12,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:12,865 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:12,915 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:14:12,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:12,918 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:12,918 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:12,919 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:12,919 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:12,919 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:12,919 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:12,919 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:12,919 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:12,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2021-10-21 20:14:12,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:12,919 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:12,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:12,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:12,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:12,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:13,046 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:13,047 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:13,048 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:13,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:13,054 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:13,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:14:13,060 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 [2021-10-21 20:14:13,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:13,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:13,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:13,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:13,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:13,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:13,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:13,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:13,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:13,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:13,144 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:13,152 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 [2021-10-21 20:14:13,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 20:14:13,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:13,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:13,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:13,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:13,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:13,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:13,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:13,185 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:13,190 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:14:13,190 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 20:14:13,190 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:13,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:13,192 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:13,198 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:13,198 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:14:13,199 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:13,199 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2021-10-21 20:14:13,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:14:13,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-21 20:14:13,232 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:14:13,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:13,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:13,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:13,302 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:14:13,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:13,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:13,328 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:14:13,328 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-21 20:14:13,354 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 11 states and 16 transitions. Complement of second has 5 states. [2021-10-21 20:14:13,355 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 [2021-10-21 20:14:13,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-21 20:14:13,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-21 20:14:13,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 20:14:13,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:13,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 20:14:13,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:13,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-21 20:14:13,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:13,358 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-10-21 20:14:13,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:13,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-10-21 20:14:13,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:14:13,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 20:14:13,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-10-21 20:14:13,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:13,361 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-21 20:14:13,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-10-21 20:14:13,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-21 20:14:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) 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) [2021-10-21 20:14:13,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-10-21 20:14:13,364 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-21 20:14:13,379 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-21 20:14:13,379 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:14:13,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2021-10-21 20:14:13,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:14:13,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:13,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:13,381 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-21 20:14:13,381 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:14:13,381 INFO L791 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 123#L12-2 assume !!(main_~c~0 > 0); 121#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 124#L12-2 assume !!(main_~c~0 > 0); 125#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 117#L12-2 [2021-10-21 20:14:13,382 INFO L793 eck$LassoCheckResult]: Loop: 117#L12-2 assume !!(main_~c~0 > 0); 118#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 117#L12-2 [2021-10-21 20:14:13,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:13,382 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2021-10-21 20:14:13,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:13,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673140506] [2021-10-21 20:14:13,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:13,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:13,393 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:13,421 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:13,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:13,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-10-21 20:14:13,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:13,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864161588] [2021-10-21 20:14:13,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:13,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:13,443 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:13,448 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:13,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:13,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2021-10-21 20:14:13,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:13,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088072063] [2021-10-21 20:14:13,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:13,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:13,475 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:13,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:13,504 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:13,552 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:13,552 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:13,552 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:13,552 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:13,553 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:14:13,553 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:13,553 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:13,553 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:13,553 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2021-10-21 20:14:13,553 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:13,554 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:13,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:13,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:13,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:13,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:13,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:13,679 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:13,679 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:14:13,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:13,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:13,695 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:13,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:14:13,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:13,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:13,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:13,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:13,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:13,769 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:13,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:13,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:13,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:14:13,850 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:14:13,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:13,853 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:13,853 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:13,854 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:13,854 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:13,854 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:13,854 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:13,854 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:13,854 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:13,854 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2021-10-21 20:14:13,854 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:13,854 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:13,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:13,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:13,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:13,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:13,967 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:13,968 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:13,968 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:13,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:13,971 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:13,980 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 [2021-10-21 20:14:13,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:13,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:13,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:13,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:13,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:13,994 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:13,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:13,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 20:14:14,011 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:14,016 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 20:14:14,016 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:14:14,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:14,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:14,017 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:14,024 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:14,025 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:14:14,025 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:14,025 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-21 20:14:14,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 20:14:14,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:14,071 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:14:14,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:14,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:14,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:14,145 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:14:14,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:14,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:14,161 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 20:14:14,162 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:14,183 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-10-21 20:14:14,183 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 [2021-10-21 20:14:14,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:14,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-21 20:14:14,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 20:14:14,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:14,185 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:14,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:14,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:14,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:14,249 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:14:14,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:14,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:14,267 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 20:14:14,267 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:14,279 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-10-21 20:14:14,280 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 [2021-10-21 20:14:14,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:14,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-21 20:14:14,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 20:14:14,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:14,281 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:14,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:14,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:14,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:14,325 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:14:14,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:14,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:14,340 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 20:14:14,340 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:14,350 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 23 transitions. Complement of second has 4 states. [2021-10-21 20:14:14,351 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 [2021-10-21 20:14:14,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:14,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-21 20:14:14,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 20:14:14,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:14,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-21 20:14:14,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:14,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-21 20:14:14,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:14,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2021-10-21 20:14:14,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:14:14,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2021-10-21 20:14:14,356 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-21 20:14:14,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 20:14:14,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-10-21 20:14:14,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:14,357 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-21 20:14:14,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-10-21 20:14:14,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2021-10-21 20:14:14,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:14,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-10-21 20:14:14,359 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-21 20:14:14,359 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-21 20:14:14,359 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 20:14:14,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2021-10-21 20:14:14,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:14:14,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:14,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:14,361 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 20:14:14,361 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:14:14,361 INFO L791 eck$LassoCheckResult]: Stem: 265#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 261#L12-2 [2021-10-21 20:14:14,361 INFO L793 eck$LassoCheckResult]: Loop: 261#L12-2 assume !!(main_~c~0 > 0); 263#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 261#L12-2 [2021-10-21 20:14:14,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:14,362 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-21 20:14:14,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:14,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772958592] [2021-10-21 20:14:14,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:14,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:14,368 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:14,372 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:14,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:14,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2021-10-21 20:14:14,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:14,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514657775] [2021-10-21 20:14:14,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:14,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:14,381 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:14,386 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:14,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:14,387 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2021-10-21 20:14:14,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:14,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315014008] [2021-10-21 20:14:14,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:14,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:14,395 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:14,401 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:14,431 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:14,432 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:14,432 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:14,432 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:14,432 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:14:14,432 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:14,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:14,433 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:14,433 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2021-10-21 20:14:14,433 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:14,433 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:14,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:14,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:14,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:14,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:14,499 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:14,499 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:14:14,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:14,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:14,501 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:14,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:14,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:14,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 20:14:14,576 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:14,576 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:14:14,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:14,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:14,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:14,620 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:14,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:14,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:14,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 20:14:14,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:14,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:14,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:14,703 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:14,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:14,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:14,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 20:14:14,741 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:14,741 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=1} Honda state: {ULTIMATE.start_main_~c~0=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] [2021-10-21 20:14:14,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:14,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:14,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:14,793 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:14,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:14,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:14,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 20:14:14,823 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:14,823 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:14:14,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:14,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:14,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:14,867 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:14,872 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:14,872 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:14,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 20:14:14,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-21 20:14:14,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:14,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:14,921 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:14,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 20:14:14,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:14,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:14,995 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:14:14,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:14,999 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:14,999 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:14,999 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:14,999 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:14,999 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:14,999 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:14,999 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:14,999 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:14,999 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2021-10-21 20:14:14,999 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:15,000 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:15,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:15,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:15,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:15,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:15,077 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:15,077 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:15,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:15,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:15,082 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:15,103 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 [2021-10-21 20:14:15,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:15,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:15,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:15,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:15,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:15,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:15,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:15,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 20:14:15,127 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:15,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:15,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:15,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:15,174 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:15,176 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 [2021-10-21 20:14:15,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:15,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:15,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:15,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:15,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:15,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:15,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 20:14:15,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:15,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:15,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:15,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:15,261 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:15,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 20:14:15,265 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 [2021-10-21 20:14:15,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:15,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:15,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:15,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:15,280 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:15,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:15,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:15,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:15,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:15,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:15,337 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:15,343 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 [2021-10-21 20:14:15,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:15,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:15,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:15,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:15,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:15,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:15,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:15,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 20:14:15,371 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:15,375 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:14:15,375 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:14:15,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:15,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:15,376 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:15,378 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:15,379 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:14:15,379 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:15,379 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 211 Supporting invariants [] [2021-10-21 20:14:15,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 20:14:15,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:15,420 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:14:15,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:15,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:15,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:15,456 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:14:15,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:15,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:15,470 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 20:14:15,470 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:15,487 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 17 transitions. Complement of second has 5 states. [2021-10-21 20:14:15,488 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 [2021-10-21 20:14:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:15,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2021-10-21 20:14:15,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-21 20:14:15,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:15,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 20:14:15,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:15,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-21 20:14:15,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:15,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2021-10-21 20:14:15,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:14:15,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. [2021-10-21 20:14:15,497 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-21 20:14:15,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-21 20:14:15,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2021-10-21 20:14:15,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:15,498 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-10-21 20:14:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2021-10-21 20:14:15,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-10-21 20:14:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:15,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2021-10-21 20:14:15,504 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2021-10-21 20:14:15,504 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2021-10-21 20:14:15,504 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 20:14:15,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2021-10-21 20:14:15,506 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:14:15,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:15,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:15,508 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2021-10-21 20:14:15,509 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:14:15,509 INFO L791 eck$LassoCheckResult]: Stem: 310#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 306#L12-2 assume !!(main_~c~0 > 0); 307#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 313#L12-2 assume !!(main_~c~0 > 0); 311#L12 [2021-10-21 20:14:15,509 INFO L793 eck$LassoCheckResult]: Loop: 311#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 312#L12-2 assume !!(main_~c~0 > 0); 311#L12 [2021-10-21 20:14:15,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:15,510 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2021-10-21 20:14:15,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:15,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034238889] [2021-10-21 20:14:15,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:15,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:15,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:15,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:14:15,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034238889] [2021-10-21 20:14:15,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034238889] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:14:15,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:14:15,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:14:15,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059008935] [2021-10-21 20:14:15,576 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:14:15,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:15,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2021-10-21 20:14:15,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:15,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168697349] [2021-10-21 20:14:15,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:15,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:15,597 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:15,603 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:15,645 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:15,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:15,646 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:15,646 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:15,646 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:14:15,646 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:15,647 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:15,647 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:15,647 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2021-10-21 20:14:15,647 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:15,647 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:15,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:15,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:15,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:15,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:15,767 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:15,768 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:14:15,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:15,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:15,769 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:15,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:15,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:15,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 20:14:15,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:15,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:15,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:15,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:15,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:15,869 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:15,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:15,888 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:15,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 20:14:15,923 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:15,923 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=0}] Lambdas: [15, 1, 14] Nus: [0, 1] [2021-10-21 20:14:15,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-21 20:14:15,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:15,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:15,954 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:15,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 20:14:15,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:15,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:16,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:16,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:16,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:16,005 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:16,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 20:14:16,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:16,007 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:16,050 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:14:16,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:16,053 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:16,053 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:16,053 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:16,053 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:16,053 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:16,053 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:16,053 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:16,053 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:16,053 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2021-10-21 20:14:16,053 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:16,054 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:16,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:16,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:16,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:16,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:16,151 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:16,151 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:16,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:16,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:16,153 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:16,156 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 [2021-10-21 20:14:16,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:16,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:16,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:16,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:16,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:16,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:16,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:16,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 20:14:16,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:16,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-21 20:14:16,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:16,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:16,222 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:16,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 20:14:16,224 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 [2021-10-21 20:14:16,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:16,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:16,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:16,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:16,236 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:16,236 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:16,259 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:16,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:16,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:16,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:16,309 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:16,311 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 [2021-10-21 20:14:16,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:16,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:16,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:16,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:16,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:16,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:16,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:16,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 20:14:16,343 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:16,346 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:14:16,346 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:14:16,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:16,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:16,348 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:16,350 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:16,350 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:14:16,350 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:16,350 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 211 Supporting invariants [] [2021-10-21 20:14:16,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 20:14:16,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:16,397 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:14:16,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:16,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:16,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:16,448 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:14:16,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:16,527 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:14:16,529 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:16,540 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 17 transitions. Complement of second has 5 states. [2021-10-21 20:14:16,543 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 [2021-10-21 20:14:16,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:16,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-21 20:14:16,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 20:14:16,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:16,544 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:16,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:16,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:16,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:16,577 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:14:16,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:16,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:16,616 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:14:16,617 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:16,644 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 14 transitions. Complement of second has 5 states. [2021-10-21 20:14:16,644 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 [2021-10-21 20:14:16,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:16,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-21 20:14:16,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 20:14:16,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:16,645 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:16,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:16,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:16,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:16,693 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:14:16,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:16,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:16,731 INFO L152 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 [2021-10-21 20:14:16,732 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:16,744 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 20 transitions. Complement of second has 4 states. [2021-10-21 20:14:16,744 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 [2021-10-21 20:14:16,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:16,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-21 20:14:16,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 20:14:16,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:16,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-21 20:14:16,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:16,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-21 20:14:16,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:16,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2021-10-21 20:14:16,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 20:14:16,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2021-10-21 20:14:16,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-21 20:14:16,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-21 20:14:16,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-10-21 20:14:16,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:16,755 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-21 20:14:16,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-10-21 20:14:16,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2021-10-21 20:14:16,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2021-10-21 20:14:16,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-21 20:14:16,759 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 20:14:16,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:14:16,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:14:16,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:14:16,766 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand has 4 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) [2021-10-21 20:14:16,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:14:16,785 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2021-10-21 20:14:16,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:14:16,786 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2021-10-21 20:14:16,790 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-21 20:14:16,791 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 8 states and 10 transitions. [2021-10-21 20:14:16,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-21 20:14:16,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-21 20:14:16,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2021-10-21 20:14:16,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:16,792 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-21 20:14:16,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2021-10-21 20:14:16,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-21 20:14:16,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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) [2021-10-21 20:14:16,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-21 20:14:16,794 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-21 20:14:16,794 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-21 20:14:16,794 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 20:14:16,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-21 20:14:16,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-21 20:14:16,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:16,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:16,798 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 1, 1, 1] [2021-10-21 20:14:16,798 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-21 20:14:16,798 INFO L791 eck$LassoCheckResult]: Stem: 460#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 456#L12-2 assume !!(main_~c~0 > 0); 457#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 458#L12-2 assume !!(main_~c~0 > 0); 459#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 462#L12-2 assume !!(main_~c~0 > 0); 461#L12 [2021-10-21 20:14:16,798 INFO L793 eck$LassoCheckResult]: Loop: 461#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 458#L12-2 assume !!(main_~c~0 > 0); 459#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 462#L12-2 assume !!(main_~c~0 > 0); 461#L12 [2021-10-21 20:14:16,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:16,799 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 3 times [2021-10-21 20:14:16,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:16,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892726887] [2021-10-21 20:14:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:16,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:16,812 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:16,819 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:16,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:16,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2021-10-21 20:14:16,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:16,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262424487] [2021-10-21 20:14:16,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:16,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:16,827 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:16,833 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:16,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:16,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1848815782, now seen corresponding path program 4 times [2021-10-21 20:14:16,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:16,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132767836] [2021-10-21 20:14:16,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:16,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:16,845 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:16,855 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:16,942 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:16,942 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:16,942 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:16,942 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:16,942 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:14:16,942 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:16,942 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:16,942 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:16,943 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2021-10-21 20:14:16,943 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:16,943 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:16,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:16,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:16,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:16,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:17,017 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:17,018 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:14:17,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:17,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:17,022 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:17,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-21 20:14:17,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:17,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:17,039 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:17,039 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:14:17,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:17,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:17,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:17,065 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:17,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-21 20:14:17,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:17,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:17,087 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:17,087 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:14:17,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:17,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:17,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:17,130 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:17,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:17,134 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:17,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-21 20:14:17,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:17,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:17,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:17,171 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:17,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 20:14:17,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:17,173 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:17,185 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:14:17,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-21 20:14:17,208 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:17,209 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:17,209 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:17,209 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:17,209 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:17,209 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:17,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:17,209 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:17,209 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2021-10-21 20:14:17,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:17,209 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:17,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:17,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:17,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:17,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:17,293 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:17,293 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:17,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:17,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:17,295 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:17,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 20:14:17,297 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 [2021-10-21 20:14:17,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:17,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:17,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:17,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:17,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:17,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:17,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:17,311 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:17,314 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:14:17,314 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:14:17,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:17,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:17,315 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:17,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 20:14:17,317 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:17,317 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:14:17,317 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:17,317 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 201 Supporting invariants [] [2021-10-21 20:14:17,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:17,342 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:14:17,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:17,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:17,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:17,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:14:17,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:17,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:17,480 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 20:14:17,480 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-21 20:14:17,489 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 13 states and 16 transitions. Complement of second has 5 states. [2021-10-21 20:14:17,489 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 [2021-10-21 20:14:17,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-21 20:14:17,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-21 20:14:17,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-21 20:14:17,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:17,490 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:17,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:17,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:17,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:17,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:14:17,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:17,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:17,612 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 20:14:17,612 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-21 20:14:17,632 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 11 states and 14 transitions. Complement of second has 5 states. [2021-10-21 20:14:17,633 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 [2021-10-21 20:14:17,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-21 20:14:17,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-21 20:14:17,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-21 20:14:17,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:17,634 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:17,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:17,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:17,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:17,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:14:17,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:17,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:17,786 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 20:14:17,786 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-21 20:14:17,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:17,813 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 16 states and 19 transitions. Complement of second has 4 states. [2021-10-21 20:14:17,815 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 [2021-10-21 20:14:17,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-21 20:14:17,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-21 20:14:17,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-21 20:14:17,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:17,817 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:17,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:17,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:17,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:17,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:14:17,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:17,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:17,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:17,959 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 20:14:17,959 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-21 20:14:17,989 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 13 states and 18 transitions. Complement of second has 4 states. [2021-10-21 20:14:17,990 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 [2021-10-21 20:14:17,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-21 20:14:17,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-21 20:14:17,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-21 20:14:17,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:17,992 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:18,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:18,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:18,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:18,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:14:18,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:18,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:18,128 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 20:14:18,129 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-21 20:14:18,231 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 72 states and 96 transitions. Complement of second has 37 states 8 powerset states29 rank states. The highest rank that occured is 5 [2021-10-21 20:14:18,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:18,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-10-21 20:14:18,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2021-10-21 20:14:18,233 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-21 20:14:18,233 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:18,233 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-21 20:14:18,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:18,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 8 letters. [2021-10-21 20:14:18,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:18,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 96 transitions. [2021-10-21 20:14:18,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-10-21 20:14:18,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 27 states and 38 transitions. [2021-10-21 20:14:18,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2021-10-21 20:14:18,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2021-10-21 20:14:18,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 38 transitions. [2021-10-21 20:14:18,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:18,242 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 38 transitions. [2021-10-21 20:14:18,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 38 transitions. [2021-10-21 20:14:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 15. [2021-10-21 20:14:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-10-21 20:14:18,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2021-10-21 20:14:18,246 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2021-10-21 20:14:18,246 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2021-10-21 20:14:18,246 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 20:14:18,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 22 transitions. [2021-10-21 20:14:18,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-21 20:14:18,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:18,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:18,247 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 1, 1] [2021-10-21 20:14:18,247 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1] [2021-10-21 20:14:18,248 INFO L791 eck$LassoCheckResult]: Stem: 822#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 823#L12-2 assume !!(main_~c~0 > 0); 826#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 825#L12-2 assume !!(main_~c~0 > 0); 830#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 829#L12-2 assume !!(main_~c~0 > 0); 828#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 827#L12-2 assume !!(main_~c~0 > 0); 824#L12 [2021-10-21 20:14:18,248 INFO L793 eck$LassoCheckResult]: Loop: 824#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 825#L12-2 assume !!(main_~c~0 > 0); 830#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 829#L12-2 assume !!(main_~c~0 > 0); 828#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 827#L12-2 assume !!(main_~c~0 > 0); 824#L12 [2021-10-21 20:14:18,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:18,248 INFO L82 PathProgramCache]: Analyzing trace with hash 659527871, now seen corresponding path program 5 times [2021-10-21 20:14:18,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:18,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322666648] [2021-10-21 20:14:18,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:18,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:18,284 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:14:18,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:14:18,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322666648] [2021-10-21 20:14:18,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322666648] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:14:18,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181205591] [2021-10-21 20:14:18,285 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 20:14:18,286 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:14:18,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:18,287 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:14:18,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-21 20:14:18,376 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-21 20:14:18,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:14:18,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:14:18,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:18,411 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:14:18,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181205591] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:14:18,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:14:18,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-21 20:14:18,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644104860] [2021-10-21 20:14:18,413 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:14:18,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:18,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1326573462, now seen corresponding path program 2 times [2021-10-21 20:14:18,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:18,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170276436] [2021-10-21 20:14:18,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:18,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:18,448 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:18,455 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:18,534 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:18,534 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:18,534 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:18,534 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:18,535 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:14:18,535 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:18,535 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:18,535 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:18,535 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2021-10-21 20:14:18,535 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:18,536 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:18,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:18,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:18,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:18,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:18,620 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:18,621 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:14:18,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:18,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:18,623 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:18,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:18,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:18,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-21 20:14:18,640 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:18,640 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:14:18,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-21 20:14:18,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:18,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:18,665 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:18,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-21 20:14:18,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:18,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:18,683 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:18,683 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:14:18,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:18,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:18,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:18,712 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:18,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-21 20:14:18,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:18,716 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:18,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-21 20:14:18,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:18,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:18,751 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:18,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-21 20:14:18,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:18,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:18,830 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:14:18,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:18,833 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:18,833 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:18,833 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:18,833 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:18,833 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:18,834 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:18,834 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:18,834 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:18,834 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2021-10-21 20:14:18,834 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:18,834 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:18,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:18,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:18,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:18,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:18,921 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:18,921 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:18,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:18,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:18,923 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:18,926 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 [2021-10-21 20:14:18,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:18,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:18,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:18,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:18,940 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:18,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:18,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-21 20:14:18,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:18,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:18,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:19,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:19,001 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:19,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:14:19,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:19,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:19,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:19,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:19,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:19,022 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:19,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-21 20:14:19,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:19,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:19,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:19,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:19,081 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:19,084 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 [2021-10-21 20:14:19,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:19,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:19,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:19,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:19,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:19,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:19,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:19,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-21 20:14:19,115 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:19,118 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:14:19,118 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 20:14:19,118 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:19,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:19,120 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:19,125 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:19,125 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:14:19,125 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:19,125 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2021-10-21 20:14:19,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-21 20:14:19,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:19,167 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:14:19,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:19,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:19,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:19,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:14:19,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:19,289 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 20:14:19,289 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 20:14:19,290 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 22 transitions. cyclomatic complexity: 9 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:19,339 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 22 transitions. cyclomatic complexity: 9. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 87 transitions. Complement of second has 9 states. [2021-10-21 20:14:19,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:19,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2021-10-21 20:14:19,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2021-10-21 20:14:19,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:19,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 14 letters. Loop has 6 letters. [2021-10-21 20:14:19,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:19,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 12 letters. [2021-10-21 20:14:19,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:19,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 87 transitions. [2021-10-21 20:14:19,350 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-21 20:14:19,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 52 states and 75 transitions. [2021-10-21 20:14:19,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-21 20:14:19,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-21 20:14:19,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 75 transitions. [2021-10-21 20:14:19,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:19,353 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 75 transitions. [2021-10-21 20:14:19,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 75 transitions. [2021-10-21 20:14:19,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2021-10-21 20:14:19,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 45 states have internal predecessors, (67), 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) [2021-10-21 20:14:19,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 67 transitions. [2021-10-21 20:14:19,368 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 67 transitions. [2021-10-21 20:14:19,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:14:19,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:14:19,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:14:19,369 INFO L87 Difference]: Start difference. First operand 46 states and 67 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:19,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:14:19,389 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2021-10-21 20:14:19,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:14:19,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 51 transitions. [2021-10-21 20:14:19,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-21 20:14:19,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 27 states and 36 transitions. [2021-10-21 20:14:19,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2021-10-21 20:14:19,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2021-10-21 20:14:19,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2021-10-21 20:14:19,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:19,393 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-10-21 20:14:19,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2021-10-21 20:14:19,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2021-10-21 20:14:19,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 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) [2021-10-21 20:14:19,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2021-10-21 20:14:19,399 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-21 20:14:19,399 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-21 20:14:19,399 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 20:14:19,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2021-10-21 20:14:19,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-21 20:14:19,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:19,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:19,404 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 2, 2, 1] [2021-10-21 20:14:19,404 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1] [2021-10-21 20:14:19,404 INFO L791 eck$LassoCheckResult]: Stem: 1076#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 1077#L12-2 assume !!(main_~c~0 > 0); 1093#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1091#L12-2 assume !!(main_~c~0 > 0); 1084#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1079#L12-2 assume !!(main_~c~0 > 0); 1085#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1083#L12-2 assume !!(main_~c~0 > 0); 1082#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1081#L12-2 assume !!(main_~c~0 > 0); 1078#L12 [2021-10-21 20:14:19,404 INFO L793 eck$LassoCheckResult]: Loop: 1078#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1079#L12-2 assume !!(main_~c~0 > 0); 1085#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1083#L12-2 assume !!(main_~c~0 > 0); 1082#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1081#L12-2 assume !!(main_~c~0 > 0); 1078#L12 [2021-10-21 20:14:19,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:19,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1791617062, now seen corresponding path program 6 times [2021-10-21 20:14:19,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:19,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180766612] [2021-10-21 20:14:19,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:19,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:19,432 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:19,439 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:19,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:19,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1326573462, now seen corresponding path program 3 times [2021-10-21 20:14:19,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:19,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506074176] [2021-10-21 20:14:19,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:19,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:19,459 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:19,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:19,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:19,465 INFO L82 PathProgramCache]: Analyzing trace with hash 709032111, now seen corresponding path program 7 times [2021-10-21 20:14:19,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:19,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049868482] [2021-10-21 20:14:19,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:19,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:14:19,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:14:19,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049868482] [2021-10-21 20:14:19,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049868482] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:14:19,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536042736] [2021-10-21 20:14:19,579 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 20:14:19,579 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:14:19,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:19,587 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:14:19,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-21 20:14:19,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:19,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:14:19,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:19,720 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:14:19,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536042736] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:14:19,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:14:19,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-21 20:14:19,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503122313] [2021-10-21 20:14:19,800 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:19,800 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:19,801 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:19,801 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:19,801 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:14:19,801 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:19,801 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:19,801 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:19,801 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration8_Loop [2021-10-21 20:14:19,802 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:19,802 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:19,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:19,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:19,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:19,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:19,874 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:19,874 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:14:19,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:19,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:19,879 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:19,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:19,882 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:19,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-21 20:14:19,915 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:19,915 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:14:19,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:19,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:19,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:19,957 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:19,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:19,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:19,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-21 20:14:20,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-21 20:14:20,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:20,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:20,006 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:20,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-21 20:14:20,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:20,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:20,030 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:14:20,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-21 20:14:20,053 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:20,053 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:20,054 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:20,054 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:20,054 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:20,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:20,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:20,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:20,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration8_Loop [2021-10-21 20:14:20,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:20,054 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:20,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:20,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:20,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:20,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:20,119 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:20,120 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:20,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:20,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:20,121 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:20,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-21 20:14:20,122 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 [2021-10-21 20:14:20,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:20,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:20,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:20,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:20,134 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:20,134 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:20,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:20,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:20,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:20,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:20,187 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:20,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-21 20:14:20,191 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 [2021-10-21 20:14:20,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:20,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:20,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:20,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:20,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:20,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:20,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:20,215 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:20,217 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 20:14:20,218 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:14:20,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:20,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:20,222 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:20,224 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:20,224 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:14:20,224 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:20,224 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-21 20:14:20,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-21 20:14:20,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:20,265 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:14:20,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:20,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:20,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:20,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:14:20,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:20,390 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-21 20:14:20,391 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:20,416 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 56 transitions. Complement of second has 7 states. [2021-10-21 20:14:20,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:20,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:20,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-10-21 20:14:20,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-21 20:14:20,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:20,419 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:20,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:20,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:20,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:20,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:14:20,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:20,534 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:20,535 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-21 20:14:20,536 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:20,563 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 56 transitions. Complement of second has 7 states. [2021-10-21 20:14:20,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:20,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:20,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-10-21 20:14:20,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-21 20:14:20,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:20,565 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:20,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:20,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:20,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:20,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:14:20,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:20,679 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:20,679 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-21 20:14:20,679 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:20,724 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 99 transitions. Complement of second has 13 states. [2021-10-21 20:14:20,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:20,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:20,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2021-10-21 20:14:20,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-21 20:14:20,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:20,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 16 letters. Loop has 6 letters. [2021-10-21 20:14:20,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:20,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 12 letters. [2021-10-21 20:14:20,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:20,728 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 99 transitions. [2021-10-21 20:14:20,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2021-10-21 20:14:20,736 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 52 states and 71 transitions. [2021-10-21 20:14:20,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-21 20:14:20,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-21 20:14:20,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 71 transitions. [2021-10-21 20:14:20,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:20,737 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 71 transitions. [2021-10-21 20:14:20,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 71 transitions. [2021-10-21 20:14:20,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 40. [2021-10-21 20:14:20,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.45) internal successors, (58), 39 states have internal predecessors, (58), 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) [2021-10-21 20:14:20,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 58 transitions. [2021-10-21 20:14:20,749 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 58 transitions. [2021-10-21 20:14:20,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:14:20,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:14:20,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:14:20,750 INFO L87 Difference]: Start difference. First operand 40 states and 58 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2021-10-21 20:14:20,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:14:20,778 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2021-10-21 20:14:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:14:20,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 85 transitions. [2021-10-21 20:14:20,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2021-10-21 20:14:20,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 51 states and 67 transitions. [2021-10-21 20:14:20,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2021-10-21 20:14:20,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-21 20:14:20,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 67 transitions. [2021-10-21 20:14:20,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:20,786 INFO L681 BuchiCegarLoop]: Abstraction has 51 states and 67 transitions. [2021-10-21 20:14:20,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 67 transitions. [2021-10-21 20:14:20,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 33. [2021-10-21 20:14:20,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.303030303030303) internal successors, (43), 32 states have internal predecessors, (43), 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) [2021-10-21 20:14:20,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2021-10-21 20:14:20,794 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-10-21 20:14:20,794 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-10-21 20:14:20,794 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 20:14:20,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 43 transitions. [2021-10-21 20:14:20,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-10-21 20:14:20,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:20,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:20,796 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-21 20:14:20,796 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 2, 2] [2021-10-21 20:14:20,797 INFO L791 eck$LassoCheckResult]: Stem: 1621#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 1623#L12-2 assume !!(main_~c~0 > 0); 1637#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1632#L12-2 assume !!(main_~c~0 > 0); 1628#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1629#L12-2 [2021-10-21 20:14:20,797 INFO L793 eck$LassoCheckResult]: Loop: 1629#L12-2 assume !!(main_~c~0 > 0); 1626#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1627#L12-2 assume !!(main_~c~0 > 0); 1631#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1617#L12-2 assume !!(main_~c~0 > 0); 1618#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1624#L12-2 assume !!(main_~c~0 > 0); 1628#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1629#L12-2 [2021-10-21 20:14:20,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:20,797 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 4 times [2021-10-21 20:14:20,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:20,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073042205] [2021-10-21 20:14:20,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:20,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:20,820 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:20,832 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:20,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:20,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1687002897, now seen corresponding path program 4 times [2021-10-21 20:14:20,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:20,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092998495] [2021-10-21 20:14:20,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:20,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:20,866 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:14:20,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:14:20,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092998495] [2021-10-21 20:14:20,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092998495] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:14:20,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:14:20,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:14:20,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200348632] [2021-10-21 20:14:20,870 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:14:20,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:14:20,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:14:20,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:14:20,871 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. cyclomatic complexity: 14 Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:20,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:14:20,882 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2021-10-21 20:14:20,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:14:20,883 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 63 transitions. [2021-10-21 20:14:20,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-10-21 20:14:20,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 39 states and 47 transitions. [2021-10-21 20:14:20,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 20:14:20,886 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-21 20:14:20,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 47 transitions. [2021-10-21 20:14:20,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:20,887 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 47 transitions. [2021-10-21 20:14:20,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 47 transitions. [2021-10-21 20:14:20,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2021-10-21 20:14:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 32 states have internal predecessors, (41), 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) [2021-10-21 20:14:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2021-10-21 20:14:20,896 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2021-10-21 20:14:20,896 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2021-10-21 20:14:20,896 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 20:14:20,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 41 transitions. [2021-10-21 20:14:20,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-10-21 20:14:20,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:20,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:20,897 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-21 20:14:20,897 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 3, 2] [2021-10-21 20:14:20,897 INFO L791 eck$LassoCheckResult]: Stem: 1712#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 1714#L12-2 assume !!(main_~c~0 > 0); 1728#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1723#L12-2 assume !!(main_~c~0 > 0); 1719#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1708#L12-2 [2021-10-21 20:14:20,897 INFO L793 eck$LassoCheckResult]: Loop: 1708#L12-2 assume !!(main_~c~0 > 0); 1709#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1718#L12-2 assume !!(main_~c~0 > 0); 1724#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1722#L12-2 assume !!(main_~c~0 > 0); 1715#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1716#L12-2 assume !!(main_~c~0 > 0); 1727#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1725#L12-2 assume !!(main_~c~0 > 0); 1721#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1708#L12-2 [2021-10-21 20:14:20,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:20,898 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 5 times [2021-10-21 20:14:20,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:20,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133578650] [2021-10-21 20:14:20,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:20,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:20,903 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:20,906 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:20,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:20,907 INFO L82 PathProgramCache]: Analyzing trace with hash 2007111828, now seen corresponding path program 5 times [2021-10-21 20:14:20,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:20,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841664106] [2021-10-21 20:14:20,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:20,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:20,914 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:20,920 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:20,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:20,920 INFO L82 PathProgramCache]: Analyzing trace with hash -254222659, now seen corresponding path program 8 times [2021-10-21 20:14:20,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:20,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022859774] [2021-10-21 20:14:20,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:20,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:20,929 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:20,937 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:21,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:21,091 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:21,091 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:21,091 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:21,091 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:21,091 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:14:21,091 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:21,091 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:21,091 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:21,092 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration10_Loop [2021-10-21 20:14:21,092 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:21,092 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:21,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:21,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:21,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:21,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:21,156 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:21,156 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:14:21,156 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:21,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:21,157 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:21,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:21,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:21,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-21 20:14:21,187 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:14:21,187 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:14:21,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:21,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:21,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:21,228 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:21,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:21,231 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:21,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-21 20:14:21,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-21 20:14:21,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:21,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:21,276 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:21,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-21 20:14:21,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:21,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:21,318 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:14:21,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:21,320 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:21,320 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:21,320 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:21,321 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:21,321 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:21,321 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:21,321 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:21,321 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:21,321 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration10_Loop [2021-10-21 20:14:21,321 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:21,321 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:21,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:21,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:21,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:21,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:21,397 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:21,397 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:21,397 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:21,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:21,399 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:21,408 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 [2021-10-21 20:14:21,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-21 20:14:21,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:21,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:21,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:21,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:21,419 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:14:21,419 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:14:21,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:14:21,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:21,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:21,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:21,454 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:21,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-21 20:14:21,470 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 [2021-10-21 20:14:21,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:21,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:21,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:21,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:21,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:21,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:21,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:21,489 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:21,491 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:14:21,492 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 20:14:21,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:21,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:21,498 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:21,521 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:21,522 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:14:21,522 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:21,522 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-21 20:14:21,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-21 20:14:21,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:21,563 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:14:21,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:21,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:21,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:21,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:14:21,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:21,727 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:21,728 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-21 20:14:21,729 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:21,735 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 47 transitions. Complement of second has 5 states. [2021-10-21 20:14:21,736 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 [2021-10-21 20:14:21,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:21,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-21 20:14:21,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-21 20:14:21,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:21,737 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:21,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:21,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:21,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:21,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:14:21,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:21,894 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:21,895 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-21 20:14:21,895 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:21,900 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 47 transitions. Complement of second has 5 states. [2021-10-21 20:14:21,901 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 [2021-10-21 20:14:21,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:21,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-21 20:14:21,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-21 20:14:21,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:21,902 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:21,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:21,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:21,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:21,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:14:21,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:22,070 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:22,070 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-21 20:14:22,071 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:22,079 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 60 transitions. Complement of second has 4 states. [2021-10-21 20:14:22,079 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 [2021-10-21 20:14:22,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:22,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-21 20:14:22,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-21 20:14:22,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:22,081 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:22,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:22,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:22,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:22,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:14:22,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:22,243 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-21 20:14:22,243 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:22,281 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 63 states and 75 transitions. Complement of second has 8 states. [2021-10-21 20:14:22,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:22,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:22,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-10-21 20:14:22,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-21 20:14:22,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:22,283 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:22,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:22,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:22,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:22,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:14:22,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:22,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:22,479 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:22,479 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-21 20:14:22,480 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:22,555 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,555 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,556 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,556 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,558 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,613 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,613 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,614 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,614 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,614 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,615 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,615 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,615 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:22,624 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 404 states and 547 transitions. Complement of second has 85 states 12 powerset states73 rank states. The highest rank that occured is 7 [2021-10-21 20:14:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:22,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:22,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 29 transitions. [2021-10-21 20:14:22,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-21 20:14:22,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:22,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 15 letters. Loop has 10 letters. [2021-10-21 20:14:22,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:22,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 5 letters. Loop has 20 letters. [2021-10-21 20:14:22,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:22,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 404 states and 547 transitions. [2021-10-21 20:14:22,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2021-10-21 20:14:22,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 404 states to 145 states and 187 transitions. [2021-10-21 20:14:22,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-21 20:14:22,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 20:14:22,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 187 transitions. [2021-10-21 20:14:22,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:22,646 INFO L681 BuchiCegarLoop]: Abstraction has 145 states and 187 transitions. [2021-10-21 20:14:22,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 187 transitions. [2021-10-21 20:14:22,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 96. [2021-10-21 20:14:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.34375) internal successors, (129), 95 states have internal predecessors, (129), 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) [2021-10-21 20:14:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 129 transitions. [2021-10-21 20:14:22,656 INFO L704 BuchiCegarLoop]: Abstraction has 96 states and 129 transitions. [2021-10-21 20:14:22,657 INFO L587 BuchiCegarLoop]: Abstraction has 96 states and 129 transitions. [2021-10-21 20:14:22,657 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-21 20:14:22,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 129 transitions. [2021-10-21 20:14:22,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2021-10-21 20:14:22,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:22,658 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:22,659 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-21 20:14:22,659 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [7, 4, 3] [2021-10-21 20:14:22,659 INFO L791 eck$LassoCheckResult]: Stem: 2705#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 2708#L12-2 assume !!(main_~c~0 > 0); 2733#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 2725#L12-2 assume !!(main_~c~0 > 0); 2713#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 2701#L12-2 [2021-10-21 20:14:22,660 INFO L793 eck$LassoCheckResult]: Loop: 2701#L12-2 assume !!(main_~c~0 > 0); 2702#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 2762#L12-2 assume !!(main_~c~0 > 0); 2756#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 2754#L12-2 assume !!(main_~c~0 > 0); 2748#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 2747#L12-2 assume !!(main_~c~0 > 0); 2746#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 2738#L12-2 assume !!(main_~c~0 > 0); 2717#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 2730#L12-2 assume !!(main_~c~0 > 0); 2728#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 2727#L12-2 assume !!(main_~c~0 > 0); 2715#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 2701#L12-2 [2021-10-21 20:14:22,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:22,660 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 6 times [2021-10-21 20:14:22,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:22,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306832767] [2021-10-21 20:14:22,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:22,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:22,668 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:22,671 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:22,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:22,672 INFO L82 PathProgramCache]: Analyzing trace with hash 822111324, now seen corresponding path program 6 times [2021-10-21 20:14:22,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:22,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462614603] [2021-10-21 20:14:22,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:22,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:22,682 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:22,690 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:22,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:22,690 INFO L82 PathProgramCache]: Analyzing trace with hash 128316933, now seen corresponding path program 9 times [2021-10-21 20:14:22,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:22,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503532467] [2021-10-21 20:14:22,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:22,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:22,701 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:22,711 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:22,868 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:22,868 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:22,868 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:22,868 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:22,869 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:14:22,869 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:22,869 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:22,869 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:22,869 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration11_Loop [2021-10-21 20:14:22,869 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:22,869 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:22,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:22,939 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:22,939 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:14:22,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:22,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:22,941 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:22,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:22,948 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:22,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-21 20:14:23,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:23,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:23,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:23,019 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:23,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-21 20:14:23,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:23,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:23,062 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:14:23,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-21 20:14:23,064 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:23,064 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:23,064 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:23,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:23,065 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:23,065 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:23,065 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:23,065 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:23,065 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration11_Loop [2021-10-21 20:14:23,065 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:23,065 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:23,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:23,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:23,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:23,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:23,120 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:23,121 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:23,121 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:23,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:23,122 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:23,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-21 20:14:23,123 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 [2021-10-21 20:14:23,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:23,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:23,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:23,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:23,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:23,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:23,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:23,157 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:23,163 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:14:23,164 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 20:14:23,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:23,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:23,165 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:23,167 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:23,168 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:14:23,168 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:23,168 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-21 20:14:23,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-21 20:14:23,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-21 20:14:23,203 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:14:23,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:23,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:23,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:23,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:14:23,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:23,419 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:23,420 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2021-10-21 20:14:23,420 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:23,428 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 104 states and 145 transitions. Complement of second has 5 states. [2021-10-21 20:14:23,428 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 [2021-10-21 20:14:23,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:23,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-21 20:14:23,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-21 20:14:23,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:23,429 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:23,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:23,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:23,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:23,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:14:23,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:23,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:23,669 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 7 loop predicates [2021-10-21 20:14:23,669 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:23,679 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 104 states and 145 transitions. Complement of second has 5 states. [2021-10-21 20:14:23,680 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 [2021-10-21 20:14:23,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:23,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-21 20:14:23,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-21 20:14:23,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:23,681 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:23,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:23,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:23,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:23,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:14:23,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:23,904 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2021-10-21 20:14:23,905 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:23,914 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 146 states and 191 transitions. Complement of second has 4 states. [2021-10-21 20:14:23,915 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 [2021-10-21 20:14:23,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:23,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-21 20:14:23,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-21 20:14:23,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:23,916 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:23,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:23,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:23,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:23,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:14:23,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:24,134 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:24,134 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 7 loop predicates [2021-10-21 20:14:24,135 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:24,182 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 172 states and 219 transitions. Complement of second has 8 states. [2021-10-21 20:14:24,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:24,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:24,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-10-21 20:14:24,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-21 20:14:24,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:24,184 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:24,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:24,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:24,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:24,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:14:24,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:24,426 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:14:24,426 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2021-10-21 20:14:24,426 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:24,505 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,505 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,506 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,506 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,506 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,507 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,508 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,508 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,510 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,511 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,513 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,513 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,572 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,573 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,573 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,574 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,574 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,574 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,575 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,575 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,575 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,575 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,576 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,576 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,576 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,577 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,577 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,577 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,587 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,587 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,588 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,588 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,591 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,592 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,592 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,593 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,649 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,650 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,650 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,650 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,651 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,651 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,651 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,652 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,652 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,652 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,653 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,653 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,653 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,654 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,654 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,654 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,655 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,655 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,655 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,663 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,663 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,664 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,664 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,664 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,665 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,671 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-21 20:14:24,727 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1787 states and 2714 transitions. Complement of second has 144 states 16 powerset states128 rank states. The highest rank that occured is 7 [2021-10-21 20:14:24,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:24,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:24,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2021-10-21 20:14:24,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-21 20:14:24,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:24,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 19 letters. Loop has 14 letters. [2021-10-21 20:14:24,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:24,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 5 letters. Loop has 28 letters. [2021-10-21 20:14:24,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:24,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1787 states and 2714 transitions. [2021-10-21 20:14:24,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-10-21 20:14:24,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1787 states to 471 states and 636 transitions. [2021-10-21 20:14:24,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:14:24,766 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-21 20:14:24,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 471 states and 636 transitions. [2021-10-21 20:14:24,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:14:24,767 INFO L681 BuchiCegarLoop]: Abstraction has 471 states and 636 transitions. [2021-10-21 20:14:24,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states and 636 transitions. [2021-10-21 20:14:24,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 260. [2021-10-21 20:14:24,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 260 states have (on average 1.4461538461538461) internal successors, (376), 259 states have internal predecessors, (376), 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) [2021-10-21 20:14:24,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 376 transitions. [2021-10-21 20:14:24,808 INFO L704 BuchiCegarLoop]: Abstraction has 260 states and 376 transitions. [2021-10-21 20:14:24,809 INFO L587 BuchiCegarLoop]: Abstraction has 260 states and 376 transitions. [2021-10-21 20:14:24,809 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-21 20:14:24,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 260 states and 376 transitions. [2021-10-21 20:14:24,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2021-10-21 20:14:24,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:14:24,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:14:24,813 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-21 20:14:24,814 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [9, 5, 4] [2021-10-21 20:14:24,814 INFO L791 eck$LassoCheckResult]: Stem: 5618#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 5623#L12-2 assume !!(main_~c~0 > 0); 5681#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5633#L12-2 assume !!(main_~c~0 > 0); 5630#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5614#L12-2 [2021-10-21 20:14:24,814 INFO L793 eck$LassoCheckResult]: Loop: 5614#L12-2 assume !!(main_~c~0 > 0); 5615#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 5831#L12-2 assume !!(main_~c~0 > 0); 5761#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 5759#L12-2 assume !!(main_~c~0 > 0); 5757#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5755#L12-2 assume !!(main_~c~0 > 0); 5751#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 5752#L12-2 assume !!(main_~c~0 > 0); 5734#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5735#L12-2 assume !!(main_~c~0 > 0); 5731#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 5732#L12-2 assume !!(main_~c~0 > 0); 5635#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5657#L12-2 assume !!(main_~c~0 > 0); 5636#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 5634#L12-2 assume !!(main_~c~0 > 0); 5632#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5614#L12-2 [2021-10-21 20:14:24,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:24,815 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 7 times [2021-10-21 20:14:24,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:24,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226387344] [2021-10-21 20:14:24,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:24,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:24,834 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:24,838 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:24,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:24,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1476420572, now seen corresponding path program 7 times [2021-10-21 20:14:24,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:24,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824995845] [2021-10-21 20:14:24,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:24,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:24,855 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:24,864 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:24,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:24,864 INFO L82 PathProgramCache]: Analyzing trace with hash 939927885, now seen corresponding path program 10 times [2021-10-21 20:14:24,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:24,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765519720] [2021-10-21 20:14:24,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:24,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:24,875 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:14:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:14:24,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:14:25,091 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:25,091 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:25,092 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:25,092 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:25,092 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:14:25,092 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:25,092 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:25,092 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:25,092 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration12_Loop [2021-10-21 20:14:25,092 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:25,092 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:25,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:25,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:25,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:25,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:25,153 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:25,154 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:14:25,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:25,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:25,166 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:25,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-21 20:14:25,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:14:25,168 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:25,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-10-21 20:14:25,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:25,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:25,203 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:25,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-21 20:14:25,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:14:25,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:14:25,301 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:14:25,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-10-21 20:14:25,303 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:14:25,304 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:14:25,304 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:14:25,304 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:14:25,304 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:14:25,304 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:25,304 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:14:25,304 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:14:25,304 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration12_Loop [2021-10-21 20:14:25,304 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:14:25,304 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:14:25,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:25,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:25,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:25,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:14:25,382 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:14:25,383 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:14:25,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:25,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:25,384 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:25,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-21 20:14:25,388 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 [2021-10-21 20:14:25,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:14:25,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:14:25,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:14:25,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:14:25,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:14:25,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:14:25,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:14:25,400 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:14:25,402 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 20:14:25,402 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:14:25,402 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:14:25,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:25,403 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:14:25,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-21 20:14:25,404 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:14:25,404 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:14:25,404 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:14:25,404 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2021-10-21 20:14:25,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-10-21 20:14:25,428 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:14:25,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:25,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:25,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:25,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 20:14:25,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:25,671 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-21 20:14:25,672 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-21 20:14:25,672 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-10-21 20:14:25,680 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) Result 276 states and 420 transitions. Complement of second has 5 states. [2021-10-21 20:14:25,681 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 [2021-10-21 20:14:25,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-10-21 20:14:25,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-21 20:14:25,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 18 letters. [2021-10-21 20:14:25,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:25,681 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:25,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:25,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:25,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:25,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 20:14:25,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:25,917 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-21 20:14:25,918 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-21 20:14:25,918 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-10-21 20:14:25,930 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) Result 276 states and 420 transitions. Complement of second has 5 states. [2021-10-21 20:14:25,930 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 [2021-10-21 20:14:25,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-10-21 20:14:25,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-21 20:14:25,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 18 letters. [2021-10-21 20:14:25,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:25,932 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:25,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:25,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:25,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:25,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 20:14:25,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:26,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:26,195 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-21 20:14:26,195 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-21 20:14:26,195 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-10-21 20:14:26,216 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) Result 392 states and 547 transitions. Complement of second has 7 states. [2021-10-21 20:14:26,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:26,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-10-21 20:14:26,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2021-10-21 20:14:26,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 18 letters. [2021-10-21 20:14:26,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:26,217 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:14:26,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:26,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:26,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:26,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 20:14:26,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:26,440 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-21 20:14:26,441 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-21 20:14:26,441 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-10-21 20:14:26,499 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) Result 511 states and 724 transitions. Complement of second has 12 states. [2021-10-21 20:14:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2021-10-21 20:14:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-10-21 20:14:26,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2021-10-21 20:14:26,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 5 letters. Loop has 18 letters. [2021-10-21 20:14:26,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:26,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 23 letters. Loop has 18 letters. [2021-10-21 20:14:26,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:26,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 5 letters. Loop has 36 letters. [2021-10-21 20:14:26,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:14:26,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 511 states and 724 transitions. [2021-10-21 20:14:26,509 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:14:26,510 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 511 states to 0 states and 0 transitions. [2021-10-21 20:14:26,511 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:14:26,511 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:14:26,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:14:26,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:14:26,511 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:14:26,511 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:14:26,512 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:14:26,512 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-21 20:14:26,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:14:26,512 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:14:26,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:14:26,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:14:26 BoogieIcfgContainer [2021-10-21 20:14:26,524 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:14:26,524 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:14:26,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:14:26,525 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:14:26,525 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:14:10" (3/4) ... [2021-10-21 20:14:26,529 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:14:26,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:14:26,531 INFO L168 Benchmark]: Toolchain (without parser) took 16318.20 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 67.3 MB in the beginning and 54.7 MB in the end (delta: 12.5 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:14:26,532 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 100.7 MB. Free memory is still 53.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:14:26,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.64 ms. Allocated memory is still 100.7 MB. Free memory was 67.1 MB in the beginning and 76.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:14:26,533 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.74 ms. Allocated memory is still 100.7 MB. Free memory was 76.9 MB in the beginning and 75.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:14:26,534 INFO L168 Benchmark]: Boogie Preprocessor took 22.00 ms. Allocated memory is still 100.7 MB. Free memory was 75.8 MB in the beginning and 74.9 MB in the end (delta: 948.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:14:26,534 INFO L168 Benchmark]: RCFGBuilder took 237.40 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 67.2 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:14:26,535 INFO L168 Benchmark]: BuchiAutomizer took 15715.12 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 67.2 MB in the beginning and 55.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 45.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:14:26,535 INFO L168 Benchmark]: Witness Printer took 4.81 ms. Allocated memory is still 132.1 MB. Free memory was 55.0 MB in the beginning and 54.7 MB in the end (delta: 284.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:14:26,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 100.7 MB. Free memory is still 53.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.64 ms. Allocated memory is still 100.7 MB. Free memory was 67.1 MB in the beginning and 76.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.74 ms. Allocated memory is still 100.7 MB. Free memory was 76.9 MB in the beginning and 75.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.00 ms. Allocated memory is still 100.7 MB. Free memory was 75.8 MB in the beginning and 74.9 MB in the end (delta: 948.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 237.40 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 67.2 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 15715.12 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 67.2 MB in the beginning and 55.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 45.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.81 ms. Allocated memory is still 132.1 MB. Free memory was 55.0 MB in the beginning and 54.7 MB in the end (delta: 284.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 15 terminating modules (4 trivial, 4 deterministic, 7 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function c and consists of 3 locations. One deterministic module has affine ranking function 211 + -2 * x and consists of 3 locations. One deterministic module has affine ranking function c and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function 211 + -2 * x and consists of 3 locations. One nondeterministic module has affine ranking function 201 + -2 * x and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 7 locations. One nondeterministic module has affine ranking function x and consists of 9 locations. One nondeterministic module has affine ranking function c and consists of 6 locations. 4 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.6s and 13 iterations. TraceHistogramMax:9. Analysis of lassos took 8.9s. Construction of modules took 0.3s. Büchi inclusion checks took 5.9s. Highest rank in rank-based complementation 7. Minimization of det autom 1. Minimization of nondet autom 14. Automata minimization 131.6ms AutomataMinimizationTime, 14 MinimizatonAttempts, 335 StatesRemovedByMinimization, 12 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 260 states and ocurred in iteration 11. Nontrivial modules had stage [4, 0, 3, 1, 3]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 105/148 HoareTripleCheckerStatistics: 159 SDtfs, 155 SDslu, 74 SDs, 0 SdLazy, 277 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 344.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT8 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax158 hnf95 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp98 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 83ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 11 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 20:14:26,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:26,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2021-10-21 20:14:27,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cdd82a-afed-4f37-bdf5-517c15277638/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...