./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF --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 8553bd7027647a5604588c30aa29c454809a172163824e055b8bdeea70d5613d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:29:35,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:29:35,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:29:35,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:29:35,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:29:35,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:29:35,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:29:35,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:29:35,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:29:35,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:29:35,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:29:35,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:29:35,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:29:35,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:29:35,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:29:35,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:29:35,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:29:35,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:29:35,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:29:36,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:29:36,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:29:36,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:29:36,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:29:36,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:29:36,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:29:36,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:29:36,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:29:36,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:29:36,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:29:36,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:29:36,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:29:36,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:29:36,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:29:36,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:29:36,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:29:36,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:29:36,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:29:36,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:29:36,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:29:36,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:29:36,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:29:36,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 06:29:36,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:29:36,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:29:36,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:29:36,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:29:36,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:29:36,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:29:36,095 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:29:36,096 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 06:29:36,096 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 06:29:36,096 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 06:29:36,097 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 06:29:36,097 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 06:29:36,098 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 06:29:36,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:29:36,098 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:29:36,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:29:36,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:29:36,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 06:29:36,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 06:29:36,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 06:29:36,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:29:36,100 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 06:29:36,100 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:29:36,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 06:29:36,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:29:36,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:29:36,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:29:36,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:29:36,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:29:36,104 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 06:29:36,104 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_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8553bd7027647a5604588c30aa29c454809a172163824e055b8bdeea70d5613d [2021-11-20 06:29:36,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:29:36,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:29:36,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:29:36,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:29:36,435 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:29:36,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2021-11-20 06:29:36,500 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/data/a3002f495/a1bd714238a849db99e5a2d97068b43d/FLAG545bfb69f [2021-11-20 06:29:37,037 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:29:37,038 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2021-11-20 06:29:37,051 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/data/a3002f495/a1bd714238a849db99e5a2d97068b43d/FLAG545bfb69f [2021-11-20 06:29:37,420 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/data/a3002f495/a1bd714238a849db99e5a2d97068b43d [2021-11-20 06:29:37,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:29:37,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:29:37,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:29:37,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:29:37,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:29:37,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:29:37" (1/1) ... [2021-11-20 06:29:37,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5474abaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37, skipping insertion in model container [2021-11-20 06:29:37,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:29:37" (1/1) ... [2021-11-20 06:29:37,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:29:37,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:29:37,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:29:37,690 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:29:37,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:29:37,717 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:29:37,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37 WrapperNode [2021-11-20 06:29:37,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:29:37,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:29:37,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:29:37,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:29:37,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37" (1/1) ... [2021-11-20 06:29:37,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37" (1/1) ... [2021-11-20 06:29:37,753 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-11-20 06:29:37,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:29:37,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:29:37,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:29:37,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:29:37,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37" (1/1) ... [2021-11-20 06:29:37,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37" (1/1) ... [2021-11-20 06:29:37,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37" (1/1) ... [2021-11-20 06:29:37,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37" (1/1) ... [2021-11-20 06:29:37,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37" (1/1) ... [2021-11-20 06:29:37,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37" (1/1) ... [2021-11-20 06:29:37,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37" (1/1) ... [2021-11-20 06:29:37,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:29:37,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:29:37,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:29:37,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:29:37,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37" (1/1) ... [2021-11-20 06:29:37,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:37,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:37,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:37,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 06:29:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:29:37,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:29:37,910 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:29:37,913 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:29:38,008 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:29:38,016 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:29:38,016 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:29:38,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:29:38 BoogieIcfgContainer [2021-11-20 06:29:38,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:29:38,019 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 06:29:38,020 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 06:29:38,023 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 06:29:38,024 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:29:38,024 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 06:29:37" (1/3) ... [2021-11-20 06:29:38,026 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ae5a06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:29:38, skipping insertion in model container [2021-11-20 06:29:38,026 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:29:38,026 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:29:37" (2/3) ... [2021-11-20 06:29:38,026 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ae5a06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:29:38, skipping insertion in model container [2021-11-20 06:29:38,027 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:29:38,027 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:29:38" (3/3) ... [2021-11-20 06:29:38,029 INFO L388 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1.c [2021-11-20 06:29:38,086 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 06:29:38,086 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 06:29:38,086 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 06:29:38,087 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 06:29:38,087 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 06:29:38,087 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 06:29:38,087 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 06:29:38,087 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 06:29:38,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:29:38,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:29:38,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:29:38,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:29:38,130 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 06:29:38,130 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:29:38,131 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 06:29:38,131 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:29:38,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:29:38,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:29:38,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:29:38,134 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 06:29:38,134 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:29:38,143 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L18true assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 8#L20-2true [2021-11-20 06:29:38,143 INFO L793 eck$LassoCheckResult]: Loop: 8#L20-2true assume !!(main_~y1~0#1 != main_~y2~0#1); 10#L20true assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 8#L20-2true [2021-11-20 06:29:38,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:38,150 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-20 06:29:38,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:38,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757906510] [2021-11-20 06:29:38,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:38,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:38,244 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:38,268 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:38,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:38,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2021-11-20 06:29:38,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:38,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394851741] [2021-11-20 06:29:38,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:38,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:38,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:38,316 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:38,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:38,319 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2021-11-20 06:29:38,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:38,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26973376] [2021-11-20 06:29:38,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:38,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:38,338 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:38,346 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:38,425 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:29:38,439 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:29:38,439 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:29:38,439 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:29:38,440 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 06:29:38,440 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:38,440 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:29:38,440 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:29:38,440 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration1_Lasso [2021-11-20 06:29:38,440 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:29:38,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:29:38,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:38,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:38,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:38,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:38,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:38,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:38,632 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:29:38,633 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 06:29:38,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:38,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:38,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:38,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:38,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:38,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 06:29:38,705 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:29:38,706 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: [] [2021-11-20 06:29:38,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:38,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:38,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:38,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:38,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:38,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:38,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 06:29:38,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:38,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:38,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:38,818 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:38,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 06:29:38,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:38,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 06:29:39,024 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 06:29:39,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:39,027 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:29:39,027 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:29:39,027 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:29:39,028 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:29:39,028 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:29:39,028 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:39,028 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:29:39,028 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:29:39,028 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration1_Lasso [2021-11-20 06:29:39,028 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:29:39,028 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:29:39,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:39,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:39,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:39,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:39,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:39,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:39,125 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:29:39,130 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:29:39,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:39,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:39,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:39,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 06:29:39,140 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 [2021-11-20 06:29:39,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:39,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:39,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:39,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:39,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:29:39,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:29:39,184 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:29:39,192 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-20 06:29:39,193 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-20 06:29:39,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:39,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:39,198 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:39,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 06:29:39,211 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:29:39,230 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-20 06:29:39,230 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:29:39,231 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y1~0#1 - 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2021-11-20 06:29:39,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:39,264 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-11-20 06:29:39,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:39,306 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:29:39,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:39,322 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:29:39,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:39,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:29:39,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:39,417 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 [2021-11-20 06:29:39,418 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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) [2021-11-20 06:29:39,491 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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 29 states and 36 transitions. Complement of second has 6 states. [2021-11-20 06:29:39,493 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 [2021-11-20 06:29:39,497 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) [2021-11-20 06:29:39,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-11-20 06:29:39,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-20 06:29:39,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:39,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-20 06:29:39,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:39,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2021-11-20 06:29:39,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:39,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-11-20 06:29:39,506 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:29:39,510 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 9 states and 12 transitions. [2021-11-20 06:29:39,511 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-20 06:29:39,511 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-11-20 06:29:39,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-11-20 06:29:39,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 06:29:39,512 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-11-20 06:29:39,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-11-20 06:29:39,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-20 06:29:39,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:29:39,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2021-11-20 06:29:39,538 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-11-20 06:29:39,538 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-11-20 06:29:39,538 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 06:29:39,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2021-11-20 06:29:39,539 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:29:39,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:29:39,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:29:39,539 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-20 06:29:39,540 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:29:39,540 INFO L791 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 89#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 86#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 87#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 94#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 90#L20-2 [2021-11-20 06:29:39,540 INFO L793 eck$LassoCheckResult]: Loop: 90#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 91#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 90#L20-2 [2021-11-20 06:29:39,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:39,540 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2021-11-20 06:29:39,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:39,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280673] [2021-11-20 06:29:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:39,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:39,566 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:39,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:39,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:39,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2021-11-20 06:29:39,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:39,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362550553] [2021-11-20 06:29:39,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:39,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:39,591 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:39,602 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:39,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:39,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122026, now seen corresponding path program 1 times [2021-11-20 06:29:39,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:39,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951323461] [2021-11-20 06:29:39,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:39,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:39,611 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:39,619 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:39,702 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:29:39,703 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:29:39,703 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:29:39,703 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:29:39,703 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 06:29:39,703 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:39,704 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:29:39,704 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:29:39,704 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration2_Lasso [2021-11-20 06:29:39,704 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:29:39,704 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:29:39,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:39,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:39,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:39,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:39,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:39,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:39,822 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:29:39,823 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 06:29:39,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:39,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:39,834 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:39,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 06:29:39,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:39,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:39,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:29:39,851 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: [] [2021-11-20 06:29:39,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:39,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:39,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:39,875 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:39,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 06:29:39,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:39,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:39,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-11-20 06:29:39,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:39,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:39,915 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:39,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 06:29:39,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 06:29:39,918 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:40,057 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 06:29:40,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:40,061 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:29:40,061 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:29:40,061 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:29:40,061 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:29:40,061 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:29:40,061 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:40,061 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:29:40,061 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:29:40,062 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration2_Lasso [2021-11-20 06:29:40,062 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:29:40,062 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:29:40,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:40,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:40,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:40,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:40,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:40,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:40,168 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:29:40,169 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:29:40,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:40,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:40,170 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:40,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 06:29:40,184 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 [2021-11-20 06:29:40,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:40,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:40,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:40,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:40,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:29:40,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:29:40,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:40,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:40,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:40,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:40,252 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:40,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 06:29:40,257 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 [2021-11-20 06:29:40,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:40,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:29:40,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:40,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:40,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:40,268 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:29:40,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:29:40,287 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:40,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:40,308 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:40,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:40,309 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:40,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 06:29:40,311 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 [2021-11-20 06:29:40,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:40,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:29:40,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:40,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:40,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:40,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:29:40,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:29:40,327 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:40,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-11-20 06:29:40,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:40,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:40,352 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:40,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 06:29:40,353 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 [2021-11-20 06:29:40,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:40,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:29:40,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:40,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:40,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:40,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:29:40,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:29:40,363 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:40,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-11-20 06:29:40,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:40,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:40,390 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:40,403 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 [2021-11-20 06:29:40,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:40,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:40,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:40,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:40,415 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:29:40,415 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:29:40,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-20 06:29:40,435 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:40,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:40,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:40,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:40,472 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:40,479 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 [2021-11-20 06:29:40,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:40,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:40,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:40,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:40,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:29:40,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:29:40,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-20 06:29:40,511 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:29:40,519 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-11-20 06:29:40,519 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-20 06:29:40,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:40,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:40,523 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:40,526 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:29:40,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-20 06:29:40,544 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-20 06:29:40,544 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:29:40,544 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1, ULTIMATE.start_main_~y1~0#1) = -1*ULTIMATE.start_main_~y2~0#1 + 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2021-11-20 06:29:40,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:40,569 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-11-20 06:29:40,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:40,613 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:29:40,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:40,662 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:29:40,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:29:40,690 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-11-20 06:29:40,690 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:29:40,724 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 18 transitions. Complement of second has 6 states. [2021-11-20 06:29:40,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:29:40,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:29:40,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-11-20 06:29:40,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-20 06:29:40,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:40,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-20 06:29:40,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:40,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2021-11-20 06:29:40,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:40,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2021-11-20 06:29:40,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:29:40,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2021-11-20 06:29:40,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-11-20 06:29:40,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-11-20 06:29:40,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-11-20 06:29:40,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 06:29:40,730 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-11-20 06:29:40,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-11-20 06:29:40,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-20 06:29:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 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) [2021-11-20 06:29:40,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-11-20 06:29:40,733 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-11-20 06:29:40,733 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-11-20 06:29:40,733 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 06:29:40,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2021-11-20 06:29:40,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:29:40,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:29:40,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:29:40,735 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2021-11-20 06:29:40,735 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:29:40,735 INFO L791 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 164#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 161#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 162#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 171#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 170#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 169#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 165#L20-2 [2021-11-20 06:29:40,735 INFO L793 eck$LassoCheckResult]: Loop: 165#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 166#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 165#L20-2 [2021-11-20 06:29:40,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:40,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122028, now seen corresponding path program 2 times [2021-11-20 06:29:40,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:40,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316054494] [2021-11-20 06:29:40,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:40,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:40,750 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:40,757 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:40,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:40,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 3 times [2021-11-20 06:29:40,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:40,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966675436] [2021-11-20 06:29:40,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:40,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:40,763 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:40,766 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:40,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:40,767 INFO L85 PathProgramCache]: Analyzing trace with hash -444518225, now seen corresponding path program 2 times [2021-11-20 06:29:40,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:40,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067890060] [2021-11-20 06:29:40,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:40,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:40,776 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:40,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:40,848 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:29:40,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:29:40,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:29:40,849 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:29:40,850 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 06:29:40,850 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:40,850 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:29:40,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:29:40,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration3_Lasso [2021-11-20 06:29:40,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:29:40,851 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:29:40,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:40,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:40,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:40,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:40,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:40,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:40,934 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:29:40,934 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 06:29:40,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:40,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:40,939 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:40,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:40,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:40,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-20 06:29:40,961 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:29:40,961 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:29:40,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:40,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:40,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:40,982 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:40,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-20 06:29:40,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:40,983 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:41,011 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:29:41,011 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:29:41,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:41,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:41,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:41,047 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:41,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:41,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:41,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-20 06:29:41,091 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:29:41,091 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:29:41,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:41,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:41,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:41,128 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:41,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-20 06:29:41,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:41,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:41,145 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:29:41,145 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:29:41,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:41,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:41,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:41,167 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:41,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-20 06:29:41,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:41,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:41,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:41,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:41,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:41,208 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:41,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-20 06:29:41,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 06:29:41,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:41,352 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 06:29:41,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:41,355 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:29:41,355 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:29:41,355 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:29:41,355 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:29:41,355 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:29:41,361 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:41,361 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:29:41,361 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:29:41,361 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration3_Lasso [2021-11-20 06:29:41,361 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:29:41,361 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:29:41,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:41,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:41,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:41,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:41,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:41,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:41,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:41,484 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:29:41,484 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:29:41,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:41,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:41,495 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:41,497 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 [2021-11-20 06:29:41,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-20 06:29:41,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:41,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:29:41,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:41,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:41,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:41,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:29:41,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:29:41,520 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:41,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-11-20 06:29:41,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:41,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:41,550 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:41,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-20 06:29:41,556 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 [2021-11-20 06:29:41,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:41,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:41,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:41,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:41,565 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:29:41,565 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:29:41,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:41,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:41,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:41,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:41,619 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:41,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-20 06:29:41,620 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 [2021-11-20 06:29:41,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:41,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:29:41,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:41,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:41,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:41,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:29:41,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:29:41,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:41,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-11-20 06:29:41,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:41,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:41,674 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:41,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-20 06:29:41,675 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 [2021-11-20 06:29:41,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:41,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:41,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:41,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:41,687 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:29:41,687 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:29:41,719 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:29:41,729 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-11-20 06:29:41,729 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-20 06:29:41,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:41,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:41,735 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:41,737 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:29:41,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-20 06:29:41,762 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-20 06:29:41,763 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:29:41,763 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y1~0#1 - 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2021-11-20 06:29:41,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:41,795 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-11-20 06:29:41,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:41,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:29:41,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:41,871 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:29:41,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:41,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:29:41,884 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-11-20 06:29:41,884 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 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) [2021-11-20 06:29:41,921 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. 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 15 states and 22 transitions. Complement of second has 6 states. [2021-11-20 06:29:41,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:29:41,923 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) [2021-11-20 06:29:41,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-11-20 06:29:41,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-20 06:29:41,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:41,924 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 06:29:41,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:41,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:29:41,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:41,996 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:29:41,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:42,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:29:42,011 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2021-11-20 06:29:42,011 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 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) [2021-11-20 06:29:42,048 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. 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 15 states and 22 transitions. Complement of second has 6 states. [2021-11-20 06:29:42,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:29:42,050 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) [2021-11-20 06:29:42,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-11-20 06:29:42,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-20 06:29:42,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:42,051 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 06:29:42,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:42,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:29:42,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:42,119 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:29:42,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:42,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:29:42,134 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-11-20 06:29:42,134 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 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) [2021-11-20 06:29:42,171 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. 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 17 states and 25 transitions. Complement of second has 5 states. [2021-11-20 06:29:42,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:29:42,174 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) [2021-11-20 06:29:42,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2021-11-20 06:29:42,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-20 06:29:42,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:42,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2021-11-20 06:29:42,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:42,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2021-11-20 06:29:42,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:42,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 25 transitions. [2021-11-20 06:29:42,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-20 06:29:42,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 21 transitions. [2021-11-20 06:29:42,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-11-20 06:29:42,182 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-11-20 06:29:42,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2021-11-20 06:29:42,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 06:29:42,183 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2021-11-20 06:29:42,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2021-11-20 06:29:42,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 7. [2021-11-20 06:29:42,184 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) [2021-11-20 06:29:42,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-11-20 06:29:42,184 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-20 06:29:42,185 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-20 06:29:42,185 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-20 06:29:42,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-11-20 06:29:42,186 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-20 06:29:42,186 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:29:42,186 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:29:42,186 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 06:29:42,186 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:29:42,187 INFO L791 eck$LassoCheckResult]: Stem: 355#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 356#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 353#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 354#L20-2 [2021-11-20 06:29:42,187 INFO L793 eck$LassoCheckResult]: Loop: 354#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 358#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 354#L20-2 [2021-11-20 06:29:42,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:42,187 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2021-11-20 06:29:42,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:42,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955234066] [2021-11-20 06:29:42,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:42,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:42,195 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:42,207 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:42,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:42,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2021-11-20 06:29:42,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:42,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224333134] [2021-11-20 06:29:42,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:42,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:42,226 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:42,230 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:42,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:42,230 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 3 times [2021-11-20 06:29:42,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:42,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047427058] [2021-11-20 06:29:42,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:42,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:42,246 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:42,250 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:42,286 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:29:42,286 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:29:42,287 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:29:42,287 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:29:42,287 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 06:29:42,287 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:42,287 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:29:42,287 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:29:42,287 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration4_Lasso [2021-11-20 06:29:42,287 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:29:42,287 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:29:42,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:42,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:42,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:42,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:42,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:42,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:42,362 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:29:42,362 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 06:29:42,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:42,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:42,363 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:42,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:42,372 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:42,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-20 06:29:42,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:42,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:42,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:42,434 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:42,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-20 06:29:42,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 06:29:42,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:42,566 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 06:29:42,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-11-20 06:29:42,569 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:29:42,569 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:29:42,569 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:29:42,569 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:29:42,570 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:29:42,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:42,570 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:29:42,570 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:29:42,570 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration4_Lasso [2021-11-20 06:29:42,570 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:29:42,570 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:29:42,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:42,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:42,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:42,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:42,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:42,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:42,649 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:29:42,649 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:29:42,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:42,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:42,650 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:42,660 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:29:42,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:42,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:29:42,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:42,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:42,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:42,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:29:42,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:29:42,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-20 06:29:42,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:42,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:42,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:42,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:42,727 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:42,736 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 [2021-11-20 06:29:42,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:42,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:42,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:42,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:42,748 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:29:42,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:29:42,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-20 06:29:42,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:42,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-11-20 06:29:42,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:42,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:42,789 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:42,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-20 06:29:42,791 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 [2021-11-20 06:29:42,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:42,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:29:42,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:42,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:42,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:42,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:29:42,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:29:42,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:42,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-11-20 06:29:42,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:42,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:42,822 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:42,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-20 06:29:42,823 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 [2021-11-20 06:29:42,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:42,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:42,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:42,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:42,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:29:42,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:29:42,845 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:29:42,851 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-11-20 06:29:42,851 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-20 06:29:42,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:42,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:42,852 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:42,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-20 06:29:42,859 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:29:42,868 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-20 06:29:42,868 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:29:42,868 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1, ULTIMATE.start_main_~y1~0#1) = 1*ULTIMATE.start_main_~y2~0#1 - 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [1*ULTIMATE.start_main_~y1~0#1 - 1 >= 0] [2021-11-20 06:29:42,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:42,890 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-11-20 06:29:42,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:42,925 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:29:42,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:42,935 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:29:42,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:42,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:29:42,950 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 [2021-11-20 06:29:42,950 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 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) [2021-11-20 06:29:42,976 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. 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 13 states and 19 transitions. Complement of second has 5 states. [2021-11-20 06:29:42,976 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 [2021-11-20 06:29:42,977 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) [2021-11-20 06:29:42,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-11-20 06:29:42,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-20 06:29:42,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:42,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-20 06:29:42,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:42,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2021-11-20 06:29:42,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:42,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 19 transitions. [2021-11-20 06:29:42,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-20 06:29:42,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 11 states and 15 transitions. [2021-11-20 06:29:42,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-20 06:29:42,980 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-20 06:29:42,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2021-11-20 06:29:42,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 06:29:42,981 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-11-20 06:29:42,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2021-11-20 06:29:42,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-11-20 06:29:42,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:29:42,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2021-11-20 06:29:42,982 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-11-20 06:29:42,983 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-11-20 06:29:42,983 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-20 06:29:42,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2021-11-20 06:29:42,983 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-20 06:29:42,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:29:42,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:29:42,985 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2021-11-20 06:29:42,985 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:29:42,986 INFO L791 eck$LassoCheckResult]: Stem: 419#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 420#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 417#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 418#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 421#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 426#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 424#L20 [2021-11-20 06:29:42,986 INFO L793 eck$LassoCheckResult]: Loop: 424#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 425#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 424#L20 [2021-11-20 06:29:42,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:42,986 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2021-11-20 06:29:42,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:42,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621158127] [2021-11-20 06:29:42,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:42,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:42,992 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:42,996 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:42,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:42,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2021-11-20 06:29:42,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:42,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838301306] [2021-11-20 06:29:42,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:42,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:43,001 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:43,005 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:43,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:43,005 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 3 times [2021-11-20 06:29:43,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:29:43,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111879975] [2021-11-20 06:29:43,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:29:43,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:29:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:43,011 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:29:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:29:43,016 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:29:43,057 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:29:43,057 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:29:43,057 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:29:43,057 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:29:43,057 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 06:29:43,057 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:43,057 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:29:43,058 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:29:43,058 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration5_Lasso [2021-11-20 06:29:43,058 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:29:43,058 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:29:43,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:43,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:43,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:43,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:43,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:43,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:43,156 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:29:43,156 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 06:29:43,157 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:43,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:43,164 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:43,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:43,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-20 06:29:43,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:43,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:43,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:43,233 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:29:43,233 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:29:43,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:43,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:43,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:43,254 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:43,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-20 06:29:43,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:43,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:43,269 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:29:43,269 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:29:43,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:43,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:43,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:43,289 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:43,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-20 06:29:43,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:43,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:43,306 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:29:43,306 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:29:43,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:43,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:43,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:43,326 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:43,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-20 06:29:43,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:29:43,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:43,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:43,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:43,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:43,363 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:43,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-20 06:29:43,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 06:29:43,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:29:43,615 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 06:29:43,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-11-20 06:29:43,619 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:29:43,619 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:29:43,619 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:29:43,619 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:29:43,619 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:29:43,619 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:43,619 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:29:43,619 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:29:43,619 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration5_Lasso [2021-11-20 06:29:43,619 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:29:43,619 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:29:43,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:43,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:43,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:43,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:43,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:43,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:29:43,718 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:29:43,718 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:29:43,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:43,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:43,719 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:43,721 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 [2021-11-20 06:29:43,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-20 06:29:43,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:43,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:29:43,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:43,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:43,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:43,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:29:43,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:29:43,737 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:43,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:43,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:43,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:43,764 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:43,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-20 06:29:43,766 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 [2021-11-20 06:29:43,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:43,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:43,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:43,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:43,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:29:43,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:29:43,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:43,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:43,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:43,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:43,833 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:43,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-20 06:29:43,834 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 [2021-11-20 06:29:43,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:43,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:29:43,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:29:43,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:43,844 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:29:43,844 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:29:43,864 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:29:43,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:43,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:43,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:43,885 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:43,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-20 06:29:43,888 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 [2021-11-20 06:29:43,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:29:43,895 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-11-20 06:29:43,895 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 06:29:43,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:29:43,902 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2021-11-20 06:29:43,903 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-11-20 06:29:43,921 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:29:43,938 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-11-20 06:29:43,938 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-11-20 06:29:43,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:29:43,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:29:43,939 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:29:43,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-20 06:29:43,940 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:29:43,950 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 4. [2021-11-20 06:29:43,950 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:29:43,950 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1) = 2*ULTIMATE.start_main_~y2~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 >= 0, 1*ULTIMATE.start_main_~y1~0#1 - 1 >= 0] [2021-11-20 06:29:43,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:43,974 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2021-11-20 06:29:44,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:29:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:44,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 06:29:44,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:29:44,043 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:29:44,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:29:44,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:29:44,072 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-11-20 06:29:44,072 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:29:44,097 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 29 transitions. Complement of second has 5 states. [2021-11-20 06:29:44,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:29:44,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:29:44,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-11-20 06:29:44,099 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-20 06:29:44,099 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:44,099 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-20 06:29:44,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:44,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-20 06:29:44,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:29:44,100 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 29 transitions. [2021-11-20 06:29:44,101 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 06:29:44,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2021-11-20 06:29:44,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 06:29:44,102 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 06:29:44,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 06:29:44,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:29:44,102 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:29:44,102 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:29:44,102 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:29:44,102 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-20 06:29:44,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:29:44,103 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 06:29:44,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 06:29:44,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 06:29:44 BoogieIcfgContainer [2021-11-20 06:29:44,110 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 06:29:44,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:29:44,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:29:44,111 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:29:44,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:29:38" (3/4) ... [2021-11-20 06:29:44,114 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:29:44,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:29:44,120 INFO L158 Benchmark]: Toolchain (without parser) took 6692.94ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 77.6MB in the beginning and 87.9MB in the end (delta: -10.3MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2021-11-20 06:29:44,120 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:29:44,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.34ms. Allocated memory is still 115.3MB. Free memory was 77.4MB in the beginning and 90.8MB in the end (delta: -13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:29:44,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.33ms. Allocated memory is still 115.3MB. Free memory was 90.8MB in the beginning and 89.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:29:44,123 INFO L158 Benchmark]: Boogie Preprocessor took 17.32ms. Allocated memory is still 115.3MB. Free memory was 89.8MB in the beginning and 88.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:29:44,123 INFO L158 Benchmark]: RCFGBuilder took 246.23ms. Allocated memory is still 115.3MB. Free memory was 88.7MB in the beginning and 80.9MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:29:44,124 INFO L158 Benchmark]: BuchiAutomizer took 6090.70ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 80.4MB in the beginning and 87.9MB in the end (delta: -7.6MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2021-11-20 06:29:44,124 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 144.7MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:29:44,126 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.34ms. Allocated memory is still 115.3MB. Free memory was 77.4MB in the beginning and 90.8MB in the end (delta: -13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.33ms. Allocated memory is still 115.3MB. Free memory was 90.8MB in the beginning and 89.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.32ms. Allocated memory is still 115.3MB. Free memory was 89.8MB in the beginning and 88.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 246.23ms. Allocated memory is still 115.3MB. Free memory was 88.7MB in the beginning and 80.9MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6090.70ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 80.4MB in the beginning and 87.9MB in the end (delta: -7.6MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 144.7MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (0 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y1 + -1 * y2 and consists of 4 locations. One deterministic module has affine ranking function y1 + -1 * y2 and consists of 4 locations. One deterministic module has affine ranking function y2 + -1 * y1 and consists of 3 locations. One deterministic module has affine ranking function 2 * y2 + 1 and consists of 4 locations. One nondeterministic module has affine ranking function y1 + -1 * y2 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.0s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 4.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 2. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 32 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax158 hnf97 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq149 hnf96 smp85 dnf112 smp97 tf100 neg95 sie127 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 66ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 06:29:44,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-11-20 06:29:44,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055f6df7-4d14-4e4d-99ec-46c173fc7e37/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE