./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Parallel.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Parallel.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt --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 fa16f28cdab01c0d49bf2bd46e148912a30ce280 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:55:34,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:55:34,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:55:34,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:55:34,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:55:34,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:55:34,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:55:34,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:55:34,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:55:34,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:55:34,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:55:34,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:55:34,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:55:34,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:55:34,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:55:34,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:55:34,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:55:34,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:55:34,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:55:34,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:55:34,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:55:34,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:55:34,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:55:34,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:55:34,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:55:34,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:55:34,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:55:34,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:55:34,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:55:34,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:55:34,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:55:34,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:55:34,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:55:34,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:55:34,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:55:34,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:55:34,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:55:34,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:55:34,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:55:34,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:55:34,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:55:34,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 00:55:34,390 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:55:34,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:55:34,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:55:34,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:55:34,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:55:34,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:55:34,393 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:55:34,394 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:55:34,394 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:55:34,395 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:55:34,395 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:55:34,395 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:55:34,396 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:55:34,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:55:34,397 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:55:34,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:55:34,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:55:34,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:55:34,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:55:34,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:55:34,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:55:34,399 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:55:34,400 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:55:34,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:55:34,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:55:34,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:55:34,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:55:34,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:55:34,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:55:34,402 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:55:34,403 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_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa16f28cdab01c0d49bf2bd46e148912a30ce280 [2021-10-13 00:55:34,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:55:34,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:55:34,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:55:34,739 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:55:34,740 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:55:34,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-crafted/Parallel.c [2021-10-13 00:55:34,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/data/502b65581/c4eca9c26e434e5a8f911d7a828cfee3/FLAG5bc0203c0 [2021-10-13 00:55:35,367 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:55:35,368 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/sv-benchmarks/c/termination-crafted/Parallel.c [2021-10-13 00:55:35,378 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/data/502b65581/c4eca9c26e434e5a8f911d7a828cfee3/FLAG5bc0203c0 [2021-10-13 00:55:35,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/data/502b65581/c4eca9c26e434e5a8f911d7a828cfee3 [2021-10-13 00:55:35,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:55:35,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:55:35,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:55:35,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:55:35,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:55:35,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:55:35" (1/1) ... [2021-10-13 00:55:35,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dbaeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:35, skipping insertion in model container [2021-10-13 00:55:35,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:55:35" (1/1) ... [2021-10-13 00:55:35,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:55:35,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:55:35,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:55:35,993 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:55:36,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:55:36,026 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:55:36,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36 WrapperNode [2021-10-13 00:55:36,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:55:36,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:55:36,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:55:36,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:55:36,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36" (1/1) ... [2021-10-13 00:55:36,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36" (1/1) ... [2021-10-13 00:55:36,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:55:36,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:55:36,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:55:36,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:55:36,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36" (1/1) ... [2021-10-13 00:55:36,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36" (1/1) ... [2021-10-13 00:55:36,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36" (1/1) ... [2021-10-13 00:55:36,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36" (1/1) ... [2021-10-13 00:55:36,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36" (1/1) ... [2021-10-13 00:55:36,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36" (1/1) ... [2021-10-13 00:55:36,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36" (1/1) ... [2021-10-13 00:55:36,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:55:36,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:55:36,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:55:36,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:55:36,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36" (1/1) ... [2021-10-13 00:55:36,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:36,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:36,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:36,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:55:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:55:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:55:36,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:55:36,331 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 00:55:36,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:36 BoogieIcfgContainer [2021-10-13 00:55:36,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:55:36,338 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:55:36,338 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:55:36,342 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:55:36,343 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:55:36,343 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:55:35" (1/3) ... [2021-10-13 00:55:36,345 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d152f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:55:36, skipping insertion in model container [2021-10-13 00:55:36,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:55:36,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36" (2/3) ... [2021-10-13 00:55:36,346 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d152f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:55:36, skipping insertion in model container [2021-10-13 00:55:36,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:55:36,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:36" (3/3) ... [2021-10-13 00:55:36,348 INFO L389 chiAutomizerObserver]: Analyzing ICFG Parallel.c [2021-10-13 00:55:36,417 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:55:36,418 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:55:36,418 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:55:36,418 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:55:36,418 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:55:36,418 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:55:36,419 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:55:36,419 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:55:36,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:55:36,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:55:36,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:55:36,454 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:55:36,461 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 00:55:36,461 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:55:36,461 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:55:36,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:55:36,463 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:55:36,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:55:36,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:55:36,464 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 00:55:36,464 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:55:36,471 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L23-2true [2021-10-13 00:55:36,472 INFO L793 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!(main_~x~0 >= 0 || main_~y~0 >= 0); 6#L23true assume main_~x~0 >= 0;main_~x~0 := main_~x~0 - 1; 5#L23-2true [2021-10-13 00:55:36,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:36,480 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-13 00:55:36,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:55:36,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740999205] [2021-10-13 00:55:36,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:36,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:55:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:36,576 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:55:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:36,605 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:55:36,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:36,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-13 00:55:36,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:55:36,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80587956] [2021-10-13 00:55:36,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:36,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:55:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:36,648 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:55:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:36,662 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:55:36,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:36,666 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-13 00:55:36,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:55:36,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60362750] [2021-10-13 00:55:36,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:36,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:55:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:36,685 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:55:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:36,698 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:55:36,840 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:55:36,840 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:55:36,840 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:55:36,841 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:55:36,841 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:55:36,841 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:36,841 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:55:36,842 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:55:36,842 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2021-10-13 00:55:36,842 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:55:36,842 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:55:36,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:36,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:36,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:36,952 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:55:36,952 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:55:36,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:36,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:36,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:36,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:55:36,978 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:55:36,979 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:55:37,005 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:55:37,006 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:55:37,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:37,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:37,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:37,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:37,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:55:37,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:55:37,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:55:37,082 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:55:37,082 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:55:37,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:37,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:37,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:37,124 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:37,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:55:37,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:55:37,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:55:37,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:37,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:37,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:37,196 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:37,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:55:37,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:55:37,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:55:37,266 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:55:37,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:37,273 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:55:37,273 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:55:37,273 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:55:37,273 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:55:37,274 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:55:37,274 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:37,274 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:55:37,274 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:55:37,274 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2021-10-13 00:55:37,274 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:55:37,274 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:55:37,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:37,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:37,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:37,325 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:55:37,330 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:55:37,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:37,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:37,340 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:37,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:55:37,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:55:37,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:55:37,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:55:37,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:55:37,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:55:37,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:55:37,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:55:37,394 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:55:37,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:37,430 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:37,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:37,433 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:37,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:55:37,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:55:37,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:55:37,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:55:37,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:55:37,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:55:37,462 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:55:37,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:55:37,473 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:55:37,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:37,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:37,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:37,500 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:37,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:55:37,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:55:37,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:55:37,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:55:37,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:55:37,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:55:37,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:55:37,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:55:37,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:55:37,532 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:55:37,536 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:55:37,536 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:55:37,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:37,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:37,540 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:37,570 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:55:37,570 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:55:37,570 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:55:37,571 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-10-13 00:55:37,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:55:37,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:37,606 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:55:37,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:55:37,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:55:37,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:55:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:55:37,664 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:55:37,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:55:37,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:55:37,696 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 00:55:37,698 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:55:37,749 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 30 transitions. Complement of second has 5 states. [2021-10-13 00:55:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:55:37,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:55:37,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-13 00:55:37,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-13 00:55:37,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:55:37,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-13 00:55:37,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:55:37,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-13 00:55:37,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:55:37,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 30 transitions. [2021-10-13 00:55:37,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:55:37,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 8 states and 11 transitions. [2021-10-13 00:55:37,767 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-13 00:55:37,767 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-13 00:55:37,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-13 00:55:37,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:55:37,768 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-13 00:55:37,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-13 00:55:37,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-13 00:55:37,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:55:37,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-13 00:55:37,794 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 00:55:37,794 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 00:55:37,794 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:55:37,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-13 00:55:37,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:55:37,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:55:37,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:55:37,796 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:55:37,796 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:55:37,796 INFO L791 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 61#L23-2 assume !!(main_~x~0 >= 0 || main_~y~0 >= 0); 63#L23 [2021-10-13 00:55:37,796 INFO L793 eck$LassoCheckResult]: Loop: 63#L23 assume !(main_~x~0 >= 0);main_~y~0 := main_~y~0 - 1; 62#L23-2 assume !!(main_~x~0 >= 0 || main_~y~0 >= 0); 63#L23 [2021-10-13 00:55:37,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:37,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-13 00:55:37,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:55:37,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636588465] [2021-10-13 00:55:37,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:37,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:55:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:37,806 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:55:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:37,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:55:37,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:37,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2021-10-13 00:55:37,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:55:37,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291459243] [2021-10-13 00:55:37,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:37,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:55:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:37,834 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:55:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:37,837 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:55:37,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:37,838 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2021-10-13 00:55:37,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:55:37,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106038947] [2021-10-13 00:55:37,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:37,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:55:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:37,859 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:55:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:37,864 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:55:37,914 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:55:37,914 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:55:37,914 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:55:37,914 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:55:37,915 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:55:37,915 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:37,915 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:55:37,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:55:37,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2021-10-13 00:55:37,915 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:55:37,915 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:55:37,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:37,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:37,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:37,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:37,968 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:55:37,968 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:55:37,968 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:37,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:37,969 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:37,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:55:37,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:55:37,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:55:38,008 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:55:38,009 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:55:38,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:38,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:38,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:38,041 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:38,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:55:38,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:55:38,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:55:38,058 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:55:38,058 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: [] [2021-10-13 00:55:38,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:38,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:38,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:38,084 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:38,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:38,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:55:38,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:55:38,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:55:38,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:38,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:38,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:38,145 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:38,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:55:38,150 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:55:38,150 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:55:38,219 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:55:38,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:38,222 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:55:38,222 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:55:38,222 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:55:38,222 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:55:38,222 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:55:38,222 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:38,222 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:55:38,222 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:55:38,222 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2021-10-13 00:55:38,222 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:55:38,223 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:55:38,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:38,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:38,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:38,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:55:38,310 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:55:38,310 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:55:38,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:38,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:38,326 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:38,370 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:55:38,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:55:38,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:55:38,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:55:38,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:55:38,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:55:38,389 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:55:38,390 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:55:38,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:55:38,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:38,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:38,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:38,432 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:38,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:55:38,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:55:38,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:55:38,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:55:38,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:55:38,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:55:38,446 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:55:38,446 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:55:38,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:55:38,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:38,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:38,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:38,491 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:38,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:55:38,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:55:38,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:55:38,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:55:38,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:55:38,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:55:38,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:55:38,502 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:55:38,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:55:38,509 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:55:38,514 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:55:38,515 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:55:38,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:55:38,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:38,517 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:38,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:55:38,521 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:55:38,521 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:55:38,521 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:55:38,521 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-13 00:55:38,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:38,542 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:55:38,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:55:38,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:55:38,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:55:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:55:38,592 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:55:38,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:55:38,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:55:38,635 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:55:38,635 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:55:38,652 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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 16 states and 23 transitions. Complement of second has 6 states. [2021-10-13 00:55:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:55:38,653 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) [2021-10-13 00:55:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-13 00:55:38,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-13 00:55:38,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:55:38,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 00:55:38,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:55:38,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-13 00:55:38,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:55:38,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2021-10-13 00:55:38,656 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:55:38,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2021-10-13 00:55:38,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:55:38,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:55:38,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:55:38,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:55:38,657 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:55:38,657 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:55:38,657 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:55:38,657 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:55:38,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:55:38,658 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:55:38,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:55:38,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:55:38 BoogieIcfgContainer [2021-10-13 00:55:38,664 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:55:38,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:55:38,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:55:38,665 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:55:38,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:36" (3/4) ... [2021-10-13 00:55:38,668 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:55:38,668 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:55:38,670 INFO L168 Benchmark]: Toolchain (without parser) took 2904.14 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 51.3 MB in the beginning and 72.6 MB in the end (delta: -21.2 MB). Peak memory consumption was 1.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:38,671 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory is still 67.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:55:38,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.48 ms. Allocated memory is still 92.3 MB. Free memory was 51.1 MB in the beginning and 68.9 MB in the end (delta: -17.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:38,672 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.70 ms. Allocated memory is still 92.3 MB. Free memory was 68.9 MB in the beginning and 67.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:55:38,673 INFO L168 Benchmark]: Boogie Preprocessor took 18.01 ms. Allocated memory is still 92.3 MB. Free memory was 67.6 MB in the beginning and 66.6 MB in the end (delta: 943.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:38,673 INFO L168 Benchmark]: RCFGBuilder took 258.06 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 59.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:38,674 INFO L168 Benchmark]: BuchiAutomizer took 2325.95 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 59.0 MB in the beginning and 73.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:38,675 INFO L168 Benchmark]: Witness Printer took 3.90 ms. Allocated memory is still 115.3 MB. Free memory was 73.3 MB in the beginning and 72.6 MB in the end (delta: 732.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:55:38,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory is still 67.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 260.48 ms. Allocated memory is still 92.3 MB. Free memory was 51.1 MB in the beginning and 68.9 MB in the end (delta: -17.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.70 ms. Allocated memory is still 92.3 MB. Free memory was 68.9 MB in the beginning and 67.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.01 ms. Allocated memory is still 92.3 MB. Free memory was 67.6 MB in the beginning and 66.6 MB in the end (delta: 943.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 258.06 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 59.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2325.95 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 59.0 MB in the beginning and 73.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.90 ms. Allocated memory is still 115.3 MB. Free memory was 73.3 MB in the beginning and 72.6 MB in the end (delta: 732.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. 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 1. Automata minimization 11.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 7 SDtfs, 9 SDslu, 4 SDs, 0 SdLazy, 14 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:55:38,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:38,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_245f73e4-88d3-4b86-a6f9-f055314ae9be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...