./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_23.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa --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 fcb42c45d403119d826fb85259664d72fd3e2539ab650f03e49f091b9d2438bf --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:25:42,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:25:42,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:25:42,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:25:42,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:25:42,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:25:42,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:25:42,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:25:42,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:25:42,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:25:42,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:25:42,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:25:42,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:25:42,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:25:42,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:25:42,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:25:42,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:25:42,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:25:42,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:25:42,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:25:42,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:25:42,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:25:42,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:25:42,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:25:42,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:25:42,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:25:42,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:25:42,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:25:42,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:25:42,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:25:42,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:25:42,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:25:42,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:25:42,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:25:42,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:25:42,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:25:42,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:25:42,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:25:42,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:25:42,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:25:42,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:25:42,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-07 01:25:42,385 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:25:42,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:25:42,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:25:42,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:25:42,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:25:42,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:25:42,387 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:25:42,387 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-07 01:25:42,387 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-07 01:25:42,388 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-07 01:25:42,388 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-07 01:25:42,388 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-07 01:25:42,388 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-07 01:25:42,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:25:42,389 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-07 01:25:42,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:25:42,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:25:42,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-07 01:25:42,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-07 01:25:42,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-07 01:25:42,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:25:42,390 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-07 01:25:42,390 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:25:42,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-07 01:25:42,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:25:42,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:25:42,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:25:42,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:25:42,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:25:42,392 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-07 01:25:42,392 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_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb42c45d403119d826fb85259664d72fd3e2539ab650f03e49f091b9d2438bf [2021-12-07 01:25:42,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:25:42,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:25:42,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:25:42,619 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:25:42,620 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:25:42,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-restricted-15/NO_23.c [2021-12-07 01:25:42,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/data/77ebfb220/a15a816e01314f47ac288993ee392992/FLAG1cf3f3d74 [2021-12-07 01:25:43,014 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:25:43,014 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/sv-benchmarks/c/termination-restricted-15/NO_23.c [2021-12-07 01:25:43,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/data/77ebfb220/a15a816e01314f47ac288993ee392992/FLAG1cf3f3d74 [2021-12-07 01:25:43,030 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/data/77ebfb220/a15a816e01314f47ac288993ee392992 [2021-12-07 01:25:43,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:25:43,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:25:43,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:25:43,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:25:43,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:25:43,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:25:43" (1/1) ... [2021-12-07 01:25:43,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a2c3891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43, skipping insertion in model container [2021-12-07 01:25:43,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:25:43" (1/1) ... [2021-12-07 01:25:43,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:25:43,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:25:43,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:25:43,161 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:25:43,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:25:43,181 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:25:43,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43 WrapperNode [2021-12-07 01:25:43,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:25:43,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:25:43,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:25:43,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:25:43,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43" (1/1) ... [2021-12-07 01:25:43,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43" (1/1) ... [2021-12-07 01:25:43,205 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2021-12-07 01:25:43,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:25:43,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:25:43,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:25:43,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:25:43,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43" (1/1) ... [2021-12-07 01:25:43,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43" (1/1) ... [2021-12-07 01:25:43,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43" (1/1) ... [2021-12-07 01:25:43,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43" (1/1) ... [2021-12-07 01:25:43,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43" (1/1) ... [2021-12-07 01:25:43,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43" (1/1) ... [2021-12-07 01:25:43,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43" (1/1) ... [2021-12-07 01:25:43,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:25:43,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:25:43,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:25:43,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:25:43,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43" (1/1) ... [2021-12-07 01:25:43,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:43,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:43,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:43,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-07 01:25:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:25:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:25:43,339 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:25:43,341 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:25:43,381 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:25:43,387 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:25:43,387 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 01:25:43,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:25:43 BoogieIcfgContainer [2021-12-07 01:25:43,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:25:43,390 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-07 01:25:43,390 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-07 01:25:43,393 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-07 01:25:43,393 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:25:43,393 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 01:25:43" (1/3) ... [2021-12-07 01:25:43,394 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cb92aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:25:43, skipping insertion in model container [2021-12-07 01:25:43,394 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:25:43,394 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:43" (2/3) ... [2021-12-07 01:25:43,394 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cb92aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:25:43, skipping insertion in model container [2021-12-07 01:25:43,394 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:25:43,395 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:25:43" (3/3) ... [2021-12-07 01:25:43,396 INFO L388 chiAutomizerObserver]: Analyzing ICFG NO_23.c [2021-12-07 01:25:43,438 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-07 01:25:43,438 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-07 01:25:43,438 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-07 01:25:43,439 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-07 01:25:43,439 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-07 01:25:43,439 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-07 01:25:43,439 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-07 01:25:43,439 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-07 01:25:43,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:43,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:25:43,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:25:43,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:25:43,474 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-07 01:25:43,474 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:25:43,474 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-07 01:25:43,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:43,475 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:25:43,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:25:43,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:25:43,476 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-07 01:25:43,476 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:25:43,481 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 4#L10-2true [2021-12-07 01:25:43,481 INFO L793 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0#1 < 100); 6#L10true assume !(main_~i~0#1 < 50);main_~i~0#1 := 49; 4#L10-2true [2021-12-07 01:25:43,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:43,486 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-07 01:25:43,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:43,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549468691] [2021-12-07 01:25:43,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:43,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:43,559 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:25:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:43,572 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:25:43,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:43,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-12-07 01:25:43,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:43,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708835826] [2021-12-07 01:25:43,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:43,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:43,580 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:25:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:43,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:25:43,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:43,585 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-12-07 01:25:43,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:43,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878907526] [2021-12-07 01:25:43,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:43,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:43,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:43,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878907526] [2021-12-07 01:25:43,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878907526] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:25:43,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:25:43,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:25:43,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847839889] [2021-12-07 01:25:43,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:25:43,670 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:25:43,671 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:25:43,671 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:25:43,671 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:25:43,671 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-07 01:25:43,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:43,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:25:43,672 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:25:43,672 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2021-12-07 01:25:43,672 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:25:43,672 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:25:43,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:43,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:43,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:43,750 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:25:43,750 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-07 01:25:43,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:43,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:43,753 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:43,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-07 01:25:43,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:25:43,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:43,774 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:25:43,775 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:25:43,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:43,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:43,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:43,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:43,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-07 01:25:43,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:25:43,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:43,813 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:25:43,813 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: [] [2021-12-07 01:25:43,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-07 01:25:43,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:43,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:43,833 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:43,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-07 01:25:43,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:25:43,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:43,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-07 01:25:43,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:43,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:43,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:43,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-07 01:25:43,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-07 01:25:43,866 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:43,878 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-07 01:25:43,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-07 01:25:43,896 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:25:43,897 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:25:43,897 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:25:43,897 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:25:43,897 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:25:43,897 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:43,897 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:25:43,897 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:25:43,897 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2021-12-07 01:25:43,897 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:25:43,897 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:25:43,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:43,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:43,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:43,936 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:25:43,939 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:25:43,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:43,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:43,940 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:43,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-07 01:25:43,942 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 [2021-12-07 01:25:43,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:43,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:43,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:43,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:25:43,957 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:25:43,957 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:25:43,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:43,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-07 01:25:43,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:43,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:43,995 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:43,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-07 01:25:43,996 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 [2021-12-07 01:25:44,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:44,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:44,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:44,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:25:44,008 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:25:44,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:25:44,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:44,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-07 01:25:44,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,044 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-07 01:25:44,045 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 [2021-12-07 01:25:44,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:44,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:25:44,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:44,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:44,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:25:44,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:25:44,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:25:44,059 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:25:44,062 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-12-07 01:25:44,062 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-07 01:25:44,063 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,073 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-07 01:25:44,075 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:25:44,075 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-07 01:25:44,075 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:25:44,076 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-07 01:25:44,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-07 01:25:44,097 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-07 01:25:44,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:44,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:25:44,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:44,131 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:25:44,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:44,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:44,160 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 [2021-12-07 01:25:44,161 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:44,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 31 transitions. Complement of second has 6 states. [2021-12-07 01:25:44,186 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 [2021-12-07 01:25:44,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:44,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-12-07 01:25:44,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2021-12-07 01:25:44,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:25:44,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-07 01:25:44,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:25:44,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-07 01:25:44,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:25:44,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-12-07 01:25:44,194 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:25:44,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2021-12-07 01:25:44,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-12-07 01:25:44,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-07 01:25:44,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-12-07 01:25:44,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:25:44,198 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-12-07 01:25:44,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-12-07 01:25:44,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-12-07 01:25:44,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:44,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-12-07 01:25:44,215 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-12-07 01:25:44,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:44,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:25:44,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:25:44,217 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:44,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:44,224 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2021-12-07 01:25:44,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:25:44,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2021-12-07 01:25:44,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:25:44,226 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2021-12-07 01:25:44,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-07 01:25:44,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-07 01:25:44,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2021-12-07 01:25:44,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:25:44,227 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-07 01:25:44,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2021-12-07 01:25:44,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-12-07 01:25:44,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:44,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-12-07 01:25:44,228 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-07 01:25:44,228 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-07 01:25:44,228 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-07 01:25:44,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2021-12-07 01:25:44,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:25:44,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:25:44,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:25:44,228 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-07 01:25:44,228 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:25:44,229 INFO L791 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 87#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 89#L10-2 assume !!(main_~i~0#1 < 100); 88#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 51; 84#L10-2 [2021-12-07 01:25:44,229 INFO L793 eck$LassoCheckResult]: Loop: 84#L10-2 assume !!(main_~i~0#1 < 100); 85#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := 49; 84#L10-2 [2021-12-07 01:25:44,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,229 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2021-12-07 01:25:44,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:44,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951138585] [2021-12-07 01:25:44,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:44,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,233 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:25:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,236 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:25:44,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2021-12-07 01:25:44,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:44,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294797988] [2021-12-07 01:25:44,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:44,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,240 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:25:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,242 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:25:44,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,242 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2021-12-07 01:25:44,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:44,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817314756] [2021-12-07 01:25:44,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:44,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,247 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:25:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,250 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:25:44,261 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:25:44,261 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:25:44,261 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:25:44,261 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:25:44,261 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-07 01:25:44,261 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,261 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:25:44,261 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:25:44,261 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2021-12-07 01:25:44,261 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:25:44,261 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:25:44,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:44,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:44,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:44,289 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:25:44,289 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-07 01:25:44,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,290 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-07 01:25:44,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:25:44,292 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:44,304 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:25:44,304 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: [] [2021-12-07 01:25:44,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-07 01:25:44,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,324 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-07 01:25:44,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:25:44,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:44,339 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:25:44,339 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:25:44,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-07 01:25:44,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,359 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-07 01:25:44,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:25:44,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:44,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-07 01:25:44,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,448 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-07 01:25:44,450 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-07 01:25:44,450 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:44,465 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-07 01:25:44,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:44,491 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:25:44,491 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:25:44,491 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:25:44,491 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:25:44,492 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:25:44,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:25:44,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:25:44,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2021-12-07 01:25:44,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:25:44,492 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:25:44,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:44,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:44,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:44,522 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:25:44,522 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:25:44,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,523 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-07 01:25:44,524 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 [2021-12-07 01:25:44,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:44,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:44,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:44,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:25:44,533 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:25:44,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:25:44,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:44,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-07 01:25:44,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,556 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-07 01:25:44,557 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 [2021-12-07 01:25:44,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:44,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:44,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:44,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:25:44,567 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:25:44,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:25:44,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:44,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-07 01:25:44,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,590 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-07 01:25:44,591 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 [2021-12-07 01:25:44,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:44,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:25:44,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:44,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:44,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:25:44,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:25:44,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:25:44,601 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:25:44,604 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-07 01:25:44,604 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-07 01:25:44,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,605 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-07 01:25:44,606 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:25:44,606 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-07 01:25:44,606 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:25:44,606 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-07 01:25:44,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:44,625 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-07 01:25:44,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:44,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:25:44,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:44,645 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:25:44,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:44,649 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 [2021-12-07 01:25:44,649 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:44,656 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 5 states. [2021-12-07 01:25:44,656 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 [2021-12-07 01:25:44,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:44,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-12-07 01:25:44,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-07 01:25:44,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:25:44,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-07 01:25:44,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:25:44,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2021-12-07 01:25:44,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:25:44,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2021-12-07 01:25:44,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:25:44,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2021-12-07 01:25:44,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-07 01:25:44,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-07 01:25:44,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-12-07 01:25:44,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:25:44,659 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-07 01:25:44,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-12-07 01:25:44,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-07 01:25:44,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:44,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-12-07 01:25:44,660 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-07 01:25:44,660 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-07 01:25:44,660 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-07 01:25:44,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-12-07 01:25:44,661 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-07 01:25:44,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:25:44,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:25:44,661 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2021-12-07 01:25:44,661 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:25:44,661 INFO L791 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 144#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 145#L10-2 assume !!(main_~i~0#1 < 100); 147#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 51; 146#L10-2 assume !!(main_~i~0#1 < 100); 142#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 51; 138#L10-2 [2021-12-07 01:25:44,661 INFO L793 eck$LassoCheckResult]: Loop: 138#L10-2 assume !!(main_~i~0#1 < 100); 139#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := 49; 138#L10-2 [2021-12-07 01:25:44,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,662 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 2 times [2021-12-07 01:25:44,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:44,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397802378] [2021-12-07 01:25:44,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:44,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:44,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:44,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:44,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397802378] [2021-12-07 01:25:44,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397802378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:25:44,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:25:44,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:25:44,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15096436] [2021-12-07 01:25:44,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:25:44,675 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-07 01:25:44,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2021-12-07 01:25:44,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:44,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725177461] [2021-12-07 01:25:44,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:44,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,678 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:25:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,680 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:25:44,690 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:25:44,691 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:25:44,691 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:25:44,691 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:25:44,691 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-07 01:25:44,691 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,691 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:25:44,691 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:25:44,691 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2021-12-07 01:25:44,691 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:25:44,691 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:25:44,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:44,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:44,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:44,716 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:25:44,716 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-07 01:25:44,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,717 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-07 01:25:44,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:25:44,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:44,731 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:25:44,731 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: [] [2021-12-07 01:25:44,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-07 01:25:44,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,751 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-07 01:25:44,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:25:44,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:44,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-07 01:25:44,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,779 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-07 01:25:44,781 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-07 01:25:44,781 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:44,791 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-07 01:25:44,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-07 01:25:44,809 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:25:44,810 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:25:44,810 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:25:44,810 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:25:44,810 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:25:44,810 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,810 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:25:44,810 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:25:44,810 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2021-12-07 01:25:44,810 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:25:44,810 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:25:44,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:44,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:44,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:44,833 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:25:44,833 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:25:44,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,839 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-07 01:25:44,840 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 [2021-12-07 01:25:44,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:44,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:25:44,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:44,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:44,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:25:44,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:25:44,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:25:44,850 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:25:44,852 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-12-07 01:25:44,852 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-07 01:25:44,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:44,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:44,853 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:44,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-07 01:25:44,854 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:25:44,854 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-07 01:25:44,854 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:25:44,854 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-07 01:25:44,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:44,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-07 01:25:44,873 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-07 01:25:44,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-07 01:25:44,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:44,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:25:44,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:44,892 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:25:44,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:44,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:44,896 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 [2021-12-07 01:25:44,896 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-12-07 01:25:44,902 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 12 states and 17 transitions. Complement of second has 5 states. [2021-12-07 01:25:44,903 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 [2021-12-07 01:25:44,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-12-07 01:25:44,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-12-07 01:25:44,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-07 01:25:44,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:25:44,904 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 01:25:44,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:44,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:25:44,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:44,921 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:25:44,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:44,925 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-07 01:25:44,926 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-12-07 01:25:44,931 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 12 states and 17 transitions. Complement of second has 5 states. [2021-12-07 01:25:44,931 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 [2021-12-07 01:25:44,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-12-07 01:25:44,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-12-07 01:25:44,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-07 01:25:44,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:25:44,932 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 01:25:44,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:44,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:25:44,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:44,949 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:25:44,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:44,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:44,953 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-07 01:25:44,954 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-12-07 01:25:44,960 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 14 states and 20 transitions. Complement of second has 4 states. [2021-12-07 01:25:44,960 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 [2021-12-07 01:25:44,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-12-07 01:25:44,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-12-07 01:25:44,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-07 01:25:44,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:25:44,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-07 01:25:44,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:25:44,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-07 01:25:44,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:25:44,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. [2021-12-07 01:25:44,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 01:25:44,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 16 transitions. [2021-12-07 01:25:44,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-07 01:25:44,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-07 01:25:44,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-12-07 01:25:44,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:25:44,963 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-07 01:25:44,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-12-07 01:25:44,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2021-12-07 01:25:44,964 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) [2021-12-07 01:25:44,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-12-07 01:25:44,964 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-12-07 01:25:44,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:44,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:25:44,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:25:44,965 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:44,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:44,970 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-12-07 01:25:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:25:44,971 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-12-07 01:25:44,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-07 01:25:44,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 9 transitions. [2021-12-07 01:25:44,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-12-07 01:25:44,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-12-07 01:25:44,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2021-12-07 01:25:44,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 01:25:44,972 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-12-07 01:25:44,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2021-12-07 01:25:44,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-12-07 01:25:44,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 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) [2021-12-07 01:25:44,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-12-07 01:25:44,973 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-07 01:25:44,973 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-07 01:25:44,973 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-07 01:25:44,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-12-07 01:25:44,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 01:25:44,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:25:44,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:25:44,974 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-07 01:25:44,974 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-12-07 01:25:44,974 INFO L791 eck$LassoCheckResult]: Stem: 306#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 307#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 308#L10-2 assume !!(main_~i~0#1 < 100); 305#L10 [2021-12-07 01:25:44,974 INFO L793 eck$LassoCheckResult]: Loop: 305#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 51; 302#L10-2 assume !!(main_~i~0#1 < 100); 303#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := 49; 304#L10-2 assume !!(main_~i~0#1 < 100); 305#L10 [2021-12-07 01:25:44,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,974 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-12-07 01:25:44,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:44,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253826488] [2021-12-07 01:25:44,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:44,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,977 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:25:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,978 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:25:44,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 1 times [2021-12-07 01:25:44,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:44,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931376517] [2021-12-07 01:25:44,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:44,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,982 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:25:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,984 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:25:44,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:44,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1810655520, now seen corresponding path program 2 times [2021-12-07 01:25:44,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:44,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047226923] [2021-12-07 01:25:44,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:44,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,988 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:25:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:44,991 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:25:45,017 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:25:45,018 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:25:45,018 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:25:45,018 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:25:45,018 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-07 01:25:45,018 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,018 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:25:45,018 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:25:45,018 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2021-12-07 01:25:45,018 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:25:45,018 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:25:45,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:45,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:45,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:45,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:45,045 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:25:45,045 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-07 01:25:45,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,046 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-07 01:25:45,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:25:45,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:45,056 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:25:45,056 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: [] [2021-12-07 01:25:45,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:45,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,075 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-07 01:25:45,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:25:45,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:45,088 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-07 01:25:45,088 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-07 01:25:45,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-07 01:25:45,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,107 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-07 01:25:45,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-07 01:25:45,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:45,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-07 01:25:45,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,135 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-07 01:25:45,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-07 01:25:45,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-07 01:25:45,169 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-07 01:25:45,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-07 01:25:45,171 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:25:45,171 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:25:45,172 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:25:45,172 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:25:45,172 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:25:45,172 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,172 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:25:45,172 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:25:45,172 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2021-12-07 01:25:45,172 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:25:45,172 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:25:45,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:45,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:45,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:45,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:25:45,196 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:25:45,196 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:25:45,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,197 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-07 01:25:45,198 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 [2021-12-07 01:25:45,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:25:45,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:25:45,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:25:45,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:25:45,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-07 01:25:45,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,226 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-07 01:25:45,227 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 [2021-12-07 01:25:45,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:25:45,236 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:25:45,236 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:25:45,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-07 01:25:45,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,259 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-07 01:25:45,261 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 [2021-12-07 01:25:45,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:25:45,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:25:45,270 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:25:45,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-07 01:25:45,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,293 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-07 01:25:45,294 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 [2021-12-07 01:25:45,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:25:45,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:25:45,302 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:25:45,305 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:45,323 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-12-07 01:25:45,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,324 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-07 01:25:45,325 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 [2021-12-07 01:25:45,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:25:45,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,334 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-07 01:25:45,335 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-12-07 01:25:45,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:25:45,336 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-07 01:25:45,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,355 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-07 01:25:45,356 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 [2021-12-07 01:25:45,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,363 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-07 01:25:45,366 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-12-07 01:25:45,366 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-12-07 01:25:45,370 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-07 01:25:45,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,389 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-07 01:25:45,390 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 [2021-12-07 01:25:45,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,399 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-07 01:25:45,401 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-12-07 01:25:45,401 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-12-07 01:25:45,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-07 01:25:45,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,424 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-07 01:25:45,425 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 [2021-12-07 01:25:45,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,432 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-07 01:25:45,434 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-12-07 01:25:45,434 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-12-07 01:25:45,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-07 01:25:45,455 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-12-07 01:25:45,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,455 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-07 01:25:45,457 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 [2021-12-07 01:25:45,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:25:45,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,464 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-07 01:25:45,465 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-07 01:25:45,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:25:45,466 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-07 01:25:45,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,485 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-07 01:25:45,486 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 [2021-12-07 01:25:45,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,493 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-07 01:25:45,496 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-12-07 01:25:45,496 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-07 01:25:45,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:45,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,521 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-07 01:25:45,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:25:45,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,530 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-07 01:25:45,532 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-12-07 01:25:45,532 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-07 01:25:45,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-07 01:25:45,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,555 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-07 01:25:45,556 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 [2021-12-07 01:25:45,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,563 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-07 01:25:45,566 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-12-07 01:25:45,566 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-07 01:25:45,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-07 01:25:45,589 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-12-07 01:25:45,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,593 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-07 01:25:45,594 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 [2021-12-07 01:25:45,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:25:45,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,602 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-12-07 01:25:45,603 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-12-07 01:25:45,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:25:45,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:45,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:45,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,623 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-07 01:25:45,625 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 [2021-12-07 01:25:45,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,633 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-12-07 01:25:45,637 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-12-07 01:25:45,637 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-12-07 01:25:45,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-07 01:25:45,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,664 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-07 01:25:45,665 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 [2021-12-07 01:25:45,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,673 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-12-07 01:25:45,675 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-12-07 01:25:45,675 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-12-07 01:25:45,681 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:45,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,701 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-07 01:25:45,702 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 [2021-12-07 01:25:45,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:25:45,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,710 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-12-07 01:25:45,712 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-12-07 01:25:45,712 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-12-07 01:25:45,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-07 01:25:45,747 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-12-07 01:25:45,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,748 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-07 01:25:45,749 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 [2021-12-07 01:25:45,758 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:45,759 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-12-07 01:25:45,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:25:45,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,759 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-07 01:25:45,759 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-12-07 01:25:45,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:25:45,762 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-07 01:25:45,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,789 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-07 01:25:45,791 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 [2021-12-07 01:25:45,798 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:45,798 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-12-07 01:25:45,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,798 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-07 01:25:45,801 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-12-07 01:25:45,801 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-12-07 01:25:45,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:45,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,827 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-07 01:25:45,830 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 [2021-12-07 01:25:45,837 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:45,837 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-12-07 01:25:45,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,838 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-07 01:25:45,842 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-12-07 01:25:45,842 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-12-07 01:25:45,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-12-07 01:25:45,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,866 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-07 01:25:45,867 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 [2021-12-07 01:25:45,874 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:45,875 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-12-07 01:25:45,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,875 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-07 01:25:45,878 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-12-07 01:25:45,878 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-12-07 01:25:45,882 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:45,900 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-12-07 01:25:45,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,901 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-07 01:25:45,903 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 [2021-12-07 01:25:45,910 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:45,910 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-12-07 01:25:45,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:25:45,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,910 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-07 01:25:45,911 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-07 01:25:45,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:25:45,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:45,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,933 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-07 01:25:45,934 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 [2021-12-07 01:25:45,941 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:45,941 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-12-07 01:25:45,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,941 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-07 01:25:45,944 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-12-07 01:25:45,944 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-07 01:25:45,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:45,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-12-07 01:25:45,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:45,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:45,973 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:45,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-07 01:25:45,974 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 [2021-12-07 01:25:45,982 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:45,982 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-12-07 01:25:45,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:45,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:45,983 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-07 01:25:45,985 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-12-07 01:25:45,985 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-07 01:25:45,992 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-12-07 01:25:46,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,020 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-07 01:25:46,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:25:46,028 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,028 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-12-07 01:25:46,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,029 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-07 01:25:46,031 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-12-07 01:25:46,031 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-07 01:25:46,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-12-07 01:25:46,054 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-12-07 01:25:46,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,055 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-07 01:25:46,056 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 [2021-12-07 01:25:46,063 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,063 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-12-07 01:25:46,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:25:46,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,063 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-12-07 01:25:46,064 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-12-07 01:25:46,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:25:46,067 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:46,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,086 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-07 01:25:46,088 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 [2021-12-07 01:25:46,095 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,095 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-12-07 01:25:46,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,096 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-12-07 01:25:46,100 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-12-07 01:25:46,100 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-12-07 01:25:46,114 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:46,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,133 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-07 01:25:46,134 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 [2021-12-07 01:25:46,141 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,141 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-12-07 01:25:46,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,141 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-12-07 01:25:46,144 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-12-07 01:25:46,144 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-12-07 01:25:46,151 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:46,170 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,170 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-07 01:25:46,171 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 [2021-12-07 01:25:46,179 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,179 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-12-07 01:25:46,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,179 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-12-07 01:25:46,181 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-12-07 01:25:46,181 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-12-07 01:25:46,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:46,206 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-12-07 01:25:46,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,207 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-12-07 01:25:46,208 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 [2021-12-07 01:25:46,215 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,215 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-12-07 01:25:46,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:25:46,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,216 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-07 01:25:46,216 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-07 01:25:46,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:25:46,218 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-12-07 01:25:46,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,236 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-12-07 01:25:46,237 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 [2021-12-07 01:25:46,246 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,246 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-12-07 01:25:46,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,247 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-07 01:25:46,248 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-12-07 01:25:46,248 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-07 01:25:46,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-12-07 01:25:46,279 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,280 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-12-07 01:25:46,281 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 [2021-12-07 01:25:46,288 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,288 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-12-07 01:25:46,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,289 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-07 01:25:46,290 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-12-07 01:25:46,291 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-07 01:25:46,295 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:46,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,320 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-12-07 01:25:46,320 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 [2021-12-07 01:25:46,327 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,327 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-12-07 01:25:46,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,328 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-12-07 01:25:46,329 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-12-07 01:25:46,329 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-07 01:25:46,333 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-12-07 01:25:46,351 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-12-07 01:25:46,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,351 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-07 01:25:46,352 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 [2021-12-07 01:25:46,360 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,360 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-12-07 01:25:46,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:25:46,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,360 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-12-07 01:25:46,361 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:25:46,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:25:46,363 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-07 01:25:46,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,381 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-12-07 01:25:46,383 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 [2021-12-07 01:25:46,391 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,391 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-12-07 01:25:46,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,391 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-12-07 01:25:46,394 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-12-07 01:25:46,394 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-12-07 01:25:46,407 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-12-07 01:25:46,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,426 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-12-07 01:25:46,427 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 [2021-12-07 01:25:46,435 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,435 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-12-07 01:25:46,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,435 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-12-07 01:25:46,437 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-12-07 01:25:46,438 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-12-07 01:25:46,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-12-07 01:25:46,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:25:46,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:46,462 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:46,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-12-07 01:25:46,463 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 [2021-12-07 01:25:46,471 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-12-07 01:25:46,471 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-12-07 01:25:46,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:25:46,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:25:46,472 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-12-07 01:25:46,473 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-12-07 01:25:46,474 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-12-07 01:25:46,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:25:46,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-12-07 01:25:46,497 INFO L469 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2021-12-07 01:25:46,497 INFO L791 eck$LassoCheckResult]: Stem: 306#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 307#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 308#L10-2 assume !!(main_~i~0#1 < 100); 305#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 51; 302#L10-2 assume !!(main_~i~0#1 < 100); 303#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := 49; 304#L10-2 assume !!(main_~i~0#1 < 100); 305#L10 [2021-12-07 01:25:46,497 INFO L793 eck$LassoCheckResult]: Loop: 305#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 51; 302#L10-2 assume !!(main_~i~0#1 < 100); 303#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := 49; 304#L10-2 assume !!(main_~i~0#1 < 100); 305#L10 [2021-12-07 01:25:46,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:46,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1810655520, now seen corresponding path program 3 times [2021-12-07 01:25:46,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:46,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282112176] [2021-12-07 01:25:46,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:46,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:46,501 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:25:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:46,504 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:25:46,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:46,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2021-12-07 01:25:46,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:46,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887244026] [2021-12-07 01:25:46,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:46,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:46,507 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:25:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:46,510 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:25:46,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:46,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1599693208, now seen corresponding path program 4 times [2021-12-07 01:25:46,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:46,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297691387] [2021-12-07 01:25:46,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:46,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:46,516 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:25:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:25:46,521 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:25:46,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 01:25:46 BoogieIcfgContainer [2021-12-07 01:25:46,558 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-07 01:25:46,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:25:46,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:25:46,559 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:25:46,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:25:43" (3/4) ... [2021-12-07 01:25:46,560 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-07 01:25:46,580 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 01:25:46,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:25:46,581 INFO L158 Benchmark]: Toolchain (without parser) took 3547.04ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 72.4MB in the beginning and 99.3MB in the end (delta: -26.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:25:46,581 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:25:46,581 INFO L158 Benchmark]: CACSL2BoogieTranslator took 146.94ms. Allocated memory is still 107.0MB. Free memory was 72.2MB in the beginning and 85.4MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 01:25:46,581 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.31ms. Allocated memory is still 107.0MB. Free memory was 85.4MB in the beginning and 84.5MB in the end (delta: 938.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:25:46,581 INFO L158 Benchmark]: Boogie Preprocessor took 12.15ms. Allocated memory is still 107.0MB. Free memory was 84.5MB in the beginning and 83.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:25:46,582 INFO L158 Benchmark]: RCFGBuilder took 170.47ms. Allocated memory is still 107.0MB. Free memory was 83.3MB in the beginning and 75.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 01:25:46,582 INFO L158 Benchmark]: BuchiAutomizer took 3168.41ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 75.4MB in the beginning and 101.3MB in the end (delta: -25.9MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2021-12-07 01:25:46,582 INFO L158 Benchmark]: Witness Printer took 21.67ms. Allocated memory is still 130.0MB. Free memory was 101.3MB in the beginning and 99.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:25:46,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 146.94ms. Allocated memory is still 107.0MB. Free memory was 72.2MB in the beginning and 85.4MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.31ms. Allocated memory is still 107.0MB. Free memory was 85.4MB in the beginning and 84.5MB in the end (delta: 938.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.15ms. Allocated memory is still 107.0MB. Free memory was 84.5MB in the beginning and 83.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 170.47ms. Allocated memory is still 107.0MB. Free memory was 83.3MB in the beginning and 75.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3168.41ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 75.4MB in the beginning and 101.3MB in the end (delta: -25.9MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. * Witness Printer took 21.67ms. Allocated memory is still 130.0MB. Free memory was 101.3MB in the beginning and 99.3MB in the end (delta: 2.0MB). 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 (2 trivial, 2 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 29 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax209 hnf100 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq136 hnf93 smp100 dnf100 smp100 tf114 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {i=49, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 [L9] COND TRUE i < 100 Loop: [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 [L9] COND TRUE i < 100 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-07 01:25:46,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210b096-6aa2-49a4-b582-88bd587a8d5d/bin/uautomizer-DrprNOufMa/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)