./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Log.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Log.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg --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 08d23a4fccc00925380f274033d6bce2f9ea0cd5a54ce734e93b963eb060b109 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:04:07,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:04:07,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:04:07,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:04:07,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:04:07,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:04:07,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:04:07,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:04:07,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:04:07,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:04:07,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:04:07,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:04:07,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:04:07,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:04:07,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:04:07,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:04:07,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:04:07,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:04:07,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:04:07,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:04:07,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:04:07,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:04:07,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:04:07,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:04:07,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:04:07,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:04:07,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:04:07,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:04:07,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:04:07,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:04:07,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:04:07,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:04:07,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:04:07,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:04:07,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:04:07,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:04:07,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:04:07,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:04:07,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:04:07,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:04:07,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:04:07,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:04:07,503 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:04:07,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:04:07,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:04:07,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:04:07,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:04:07,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:04:07,506 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:04:07,506 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:04:07,506 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:04:07,506 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:04:07,507 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:04:07,508 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:04:07,508 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:04:07,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:04:07,508 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:04:07,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:04:07,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:04:07,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:04:07,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:04:07,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:04:07,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:04:07,510 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:04:07,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:04:07,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:04:07,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:04:07,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:04:07,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:04:07,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:04:07,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:04:07,513 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:04:07,513 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_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08d23a4fccc00925380f274033d6bce2f9ea0cd5a54ce734e93b963eb060b109 [2021-10-28 09:04:07,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:04:07,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:04:07,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:04:07,807 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:04:07,808 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:04:07,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-restricted-15/Log.c [2021-10-28 09:04:07,888 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/data/87046337f/5237fa4e1d8e4e63be44f427fe2aeba8/FLAG479d1c711 [2021-10-28 09:04:08,426 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:04:08,427 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/sv-benchmarks/c/termination-restricted-15/Log.c [2021-10-28 09:04:08,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/data/87046337f/5237fa4e1d8e4e63be44f427fe2aeba8/FLAG479d1c711 [2021-10-28 09:04:08,812 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/data/87046337f/5237fa4e1d8e4e63be44f427fe2aeba8 [2021-10-28 09:04:08,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:04:08,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:04:08,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:04:08,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:04:08,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:04:08,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d7ee62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:08, skipping insertion in model container [2021-10-28 09:04:08,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:04:08" (1/1) ... [2021-10-28 09:04:08,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:04:08,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:04:09,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:04:09,034 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:04:09,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:04:09,066 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:04:09,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:09 WrapperNode [2021-10-28 09:04:09,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:04:09,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:04:09,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:04:09,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:04:09,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:09" (1/1) ... [2021-10-28 09:04:09,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:09" (1/1) ... [2021-10-28 09:04:09,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:04:09,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:04:09,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:04:09,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:04:09,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:09" (1/1) ... [2021-10-28 09:04:09,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:09" (1/1) ... [2021-10-28 09:04:09,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:09" (1/1) ... [2021-10-28 09:04:09,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:09" (1/1) ... [2021-10-28 09:04:09,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:09" (1/1) ... [2021-10-28 09:04:09,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:09" (1/1) ... [2021-10-28 09:04:09,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:09" (1/1) ... [2021-10-28 09:04:09,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:04:09,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:04:09,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:04:09,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:04:09,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:09" (1/1) ... [2021-10-28 09:04:09,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:09,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:09,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:09,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:04:09,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:04:09,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:04:09,360 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:04:09,360 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 09:04:09,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:04:09 BoogieIcfgContainer [2021-10-28 09:04:09,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:04:09,364 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:04:09,365 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:04:09,368 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:04:09,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:04:09,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:04:08" (1/3) ... [2021-10-28 09:04:09,370 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34611a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:04:09, skipping insertion in model container [2021-10-28 09:04:09,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:04:09,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:09" (2/3) ... [2021-10-28 09:04:09,371 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34611a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:04:09, skipping insertion in model container [2021-10-28 09:04:09,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:04:09,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:04:09" (3/3) ... [2021-10-28 09:04:09,373 INFO L389 chiAutomizerObserver]: Analyzing ICFG Log.c [2021-10-28 09:04:09,429 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:04:09,430 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:04:09,430 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:04:09,430 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:04:09,430 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:04:09,430 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:04:09,430 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:04:09,430 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:04:09,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:09,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:04:09,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:04:09,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:04:09,468 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:04:09,469 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:04:09,469 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:04:09,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:09,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:04:09,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:04:09,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:04:09,471 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:04:09,472 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:04:09,478 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 7#L13-2true [2021-10-28 09:04:09,479 INFO L793 eck$LassoCheckResult]: Loop: 7#L13-2true assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 4#L17-2true assume !(main_~xtmp~0 > 1); 9#L17-3true main_~x~0 := main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 7#L13-2true [2021-10-28 09:04:09,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:09,486 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 09:04:09,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:09,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125086298] [2021-10-28 09:04:09,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:09,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:09,577 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:09,603 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:09,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:09,607 INFO L85 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2021-10-28 09:04:09,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:09,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698296307] [2021-10-28 09:04:09,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:09,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:09,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:09,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:04:09,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698296307] [2021-10-28 09:04:09,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698296307] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:04:09,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:04:09,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:04:09,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444070865] [2021-10-28 09:04:09,719 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:04:09,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:04:09,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:04:09,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:04:09,750 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-10-28 09:04:09,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:04:09,794 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-10-28 09:04:09,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:04:09,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-10-28 09:04:09,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:04:09,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2021-10-28 09:04:09,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 09:04:09,815 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-28 09:04:09,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2021-10-28 09:04:09,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:04:09,816 INFO L681 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-28 09:04:09,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2021-10-28 09:04:09,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2021-10-28 09:04:09,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:09,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2021-10-28 09:04:09,840 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-28 09:04:09,840 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-28 09:04:09,840 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:04:09,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2021-10-28 09:04:09,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:04:09,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:04:09,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:04:09,841 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:04:09,841 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:04:09,842 INFO L791 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 29#L13-2 [2021-10-28 09:04:09,842 INFO L793 eck$LassoCheckResult]: Loop: 29#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 26#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 27#L17-2 assume !(main_~xtmp~0 > 1); 30#L17-3 main_~x~0 := main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 29#L13-2 [2021-10-28 09:04:09,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:09,842 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-28 09:04:09,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:09,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850213765] [2021-10-28 09:04:09,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:09,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:09,848 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:09,851 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:09,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:09,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2021-10-28 09:04:09,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:09,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914906347] [2021-10-28 09:04:09,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:09,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:09,862 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:09,870 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:09,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:09,870 INFO L85 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2021-10-28 09:04:09,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:09,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746439973] [2021-10-28 09:04:09,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:09,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:09,880 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:09,890 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:10,055 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:04:10,056 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:04:10,057 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:04:10,057 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:04:10,057 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:04:10,057 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:10,061 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:04:10,061 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:04:10,062 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration2_Loop [2021-10-28 09:04:10,062 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:04:10,062 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:04:10,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:10,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:10,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:10,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:10,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:10,245 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:04:10,249 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:04:10,273 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:10,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:10,277 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:10,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:04:10,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:10,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:04:10,312 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:04:10,312 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: [] [2021-10-28 09:04:10,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:10,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:10,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:10,358 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:10,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:04:10,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:10,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:04:10,383 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:04:10,383 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: [] [2021-10-28 09:04:10,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:10,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:10,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:10,425 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:10,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:04:10,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:10,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:04:10,460 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:04:10,461 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=1} Honda state: {ULTIMATE.start_main_~restmp~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:04:10,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:10,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:10,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:10,496 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:10,502 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:04:10,502 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:10,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:04:10,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:10,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:10,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:10,565 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:10,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:04:10,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:10,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:04:10,607 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:04:10,607 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=-2}, {ULTIMATE.start_main_~res~0=6}, {ULTIMATE.start_main_~res~0=-3}] Lambdas: [4, 1, 1] Nus: [1, 0] [2021-10-28 09:04:10,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:10,645 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:10,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:10,648 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:10,654 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:04:10,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:10,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:04:10,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:10,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:10,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:10,720 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:10,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:04:10,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:10,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:04:11,075 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:04:11,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:11,083 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:04:11,083 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:04:11,083 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:04:11,083 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:04:11,083 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:04:11,084 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:11,084 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:04:11,084 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:04:11,084 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration2_Loop [2021-10-28 09:04:11,084 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:04:11,084 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:04:11,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:11,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:11,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:11,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:11,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:11,204 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:04:11,208 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:04:11,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:11,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:11,211 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:11,216 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 [2021-10-28 09:04:11,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:11,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:11,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:11,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:11,231 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:11,231 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:11,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:04:11,256 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:11,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:11,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:11,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:11,294 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:11,300 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 [2021-10-28 09:04:11,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:11,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:11,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:11,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:11,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:11,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:11,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:04:11,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:11,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:11,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:11,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:11,367 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:11,377 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 [2021-10-28 09:04:11,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:11,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:04:11,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:11,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:11,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:11,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:04:11,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:04:11,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:04:11,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:11,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:11,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:11,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:11,442 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:11,449 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 [2021-10-28 09:04:11,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:11,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:04:11,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:11,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:11,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:11,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:04:11,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:04:11,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:04:11,480 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:04:11,486 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:04:11,486 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:04:11,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:11,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:11,489 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:11,491 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:04:11,492 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:04:11,492 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:04:11,492 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 09:04:11,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:04:11,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:11,530 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:04:11,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:11,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:04:11,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:11,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:04:11,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:11,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:04:11,643 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 09:04:11,643 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:11,712 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 12 transitions. Complement of second has 6 states. [2021-10-28 09:04:11,713 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 [2021-10-28 09:04:11,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:11,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2021-10-28 09:04:11,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-28 09:04:11,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:11,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 09:04:11,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:11,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 1 letters. Loop has 8 letters. [2021-10-28 09:04:11,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:11,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2021-10-28 09:04:11,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:04:11,722 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2021-10-28 09:04:11,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-28 09:04:11,723 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-28 09:04:11,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-28 09:04:11,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:04:11,723 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 09:04:11,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-28 09:04:11,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-28 09:04:11,725 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) [2021-10-28 09:04:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-28 09:04:11,725 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 09:04:11,725 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 09:04:11,726 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:04:11,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-28 09:04:11,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:04:11,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:04:11,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:04:11,728 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:04:11,728 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:04:11,728 INFO L791 eck$LassoCheckResult]: Stem: 84#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 85#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 81#L17-2 [2021-10-28 09:04:11,728 INFO L793 eck$LassoCheckResult]: Loop: 81#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 81#L17-2 [2021-10-28 09:04:11,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:11,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-28 09:04:11,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:11,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615084378] [2021-10-28 09:04:11,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:11,731 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:11,747 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:11,760 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:11,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:11,762 INFO L85 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2021-10-28 09:04:11,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:11,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654341435] [2021-10-28 09:04:11,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:11,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:11,772 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:11,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:11,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:11,783 INFO L85 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2021-10-28 09:04:11,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:11,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790494193] [2021-10-28 09:04:11,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:11,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:11,793 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:11,803 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:11,830 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:04:11,830 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:04:11,830 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:04:11,830 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:04:11,830 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:04:11,830 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:11,831 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:04:11,831 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:04:11,831 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration3_Loop [2021-10-28 09:04:11,831 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:04:11,831 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:04:11,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:11,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:11,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:11,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:11,888 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:04:11,888 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:04:11,888 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:11,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:11,891 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:11,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:04:11,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:04:11,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:11,940 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:04:11,940 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: [] [2021-10-28 09:04:11,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:11,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:11,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:11,977 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:11,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:04:11,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:04:11,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:12,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:12,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:12,013 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:12,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:04:12,015 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:04:12,015 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:12,043 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:04:12,043 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=0} Honda state: {ULTIMATE.start_main_~restmp~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0=1}, {ULTIMATE.start_main_~restmp~0=-7}, {ULTIMATE.start_main_~restmp~0=7}] Lambdas: [8, 2, 1] Nus: [1, 1] [2021-10-28 09:04:12,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:12,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:12,076 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:12,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:04:12,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:04:12,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:12,102 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:04:12,102 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: [] [2021-10-28 09:04:12,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:12,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:12,127 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:12,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:04:12,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:04:12,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:12,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:12,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:12,187 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:12,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:04:12,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:04:12,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:12,226 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:04:12,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:12,231 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:04:12,231 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:04:12,231 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:04:12,231 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:04:12,231 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:04:12,232 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,232 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:04:12,232 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:04:12,232 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration3_Loop [2021-10-28 09:04:12,232 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:04:12,232 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:04:12,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:12,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:12,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:12,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:12,303 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:04:12,304 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:04:12,304 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:12,348 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:12,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:12,379 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 [2021-10-28 09:04:12,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:04:12,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:12,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:12,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:12,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:12,394 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:12,394 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:12,412 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:12,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:12,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:12,448 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:12,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:04:12,456 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 [2021-10-28 09:04:12,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:12,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:04:12,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:12,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:12,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:12,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:04:12,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:04:12,491 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:12,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:12,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:12,528 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:12,530 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 [2021-10-28 09:04:12,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:12,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:12,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:12,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:12,549 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:12,549 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:12,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:04:12,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:12,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 09:04:12,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:12,578 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:12,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:04:12,580 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 [2021-10-28 09:04:12,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:12,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:04:12,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:12,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:12,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:12,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:04:12,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:04:12,600 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:04:12,605 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:04:12,605 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:04:12,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:12,606 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:12,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:04:12,608 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:04:12,608 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:04:12,608 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:04:12,609 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2021-10-28 09:04:12,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:12,628 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:04:12,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:12,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:04:12,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:12,672 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:04:12,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:12,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:12,673 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 [2021-10-28 09:04:12,673 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 1.5) 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) [2021-10-28 09:04:12,685 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 1.5) 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 15 states and 20 transitions. Complement of second has 5 states. [2021-10-28 09:04:12,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:04:12,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) 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) [2021-10-28 09:04:12,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-28 09:04:12,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-28 09:04:12,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:12,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-28 09:04:12,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:12,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 09:04:12,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:12,687 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2021-10-28 09:04:12,688 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:04:12,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2021-10-28 09:04:12,688 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-28 09:04:12,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-28 09:04:12,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2021-10-28 09:04:12,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:04:12,689 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-10-28 09:04:12,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2021-10-28 09:04:12,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2021-10-28 09:04:12,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:12,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-28 09:04:12,690 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-28 09:04:12,691 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-28 09:04:12,691 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:04:12,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-28 09:04:12,691 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:04:12,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:04:12,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:04:12,692 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2021-10-28 09:04:12,692 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:04:12,692 INFO L791 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 136#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 133#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 134#L17-2 assume !(main_~xtmp~0 > 1); 138#L17-3 main_~x~0 := main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 137#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 132#L17-2 [2021-10-28 09:04:12,692 INFO L793 eck$LassoCheckResult]: Loop: 132#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 132#L17-2 [2021-10-28 09:04:12,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:12,693 INFO L85 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2021-10-28 09:04:12,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:12,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480263346] [2021-10-28 09:04:12,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:12,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:12,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:04:12,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:04:12,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480263346] [2021-10-28 09:04:12,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480263346] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:04:12,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:04:12,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:04:12,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500506649] [2021-10-28 09:04:12,719 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:04:12,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:12,720 INFO L85 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2021-10-28 09:04:12,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:12,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801899772] [2021-10-28 09:04:12,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:12,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:12,724 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:12,727 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:12,745 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:04:12,745 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:04:12,745 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:04:12,745 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:04:12,746 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:04:12,746 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,746 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:04:12,746 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:04:12,746 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration4_Loop [2021-10-28 09:04:12,746 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:04:12,746 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:04:12,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:12,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:12,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:12,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:12,796 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:04:12,797 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:04:12,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:12,798 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:12,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:04:12,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:12,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:04:12,823 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:04:12,824 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:04:12,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:12,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:12,857 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:12,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:04:12,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:12,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:04:12,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:12,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:12,916 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:12,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:04:12,918 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:04:12,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:04:12,955 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:04:12,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:12,957 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:04:12,958 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:04:12,958 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:04:12,958 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:04:12,958 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:04:12,958 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:12,958 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:04:12,958 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:04:12,958 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration4_Loop [2021-10-28 09:04:12,958 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:04:12,958 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:04:12,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:12,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:12,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:12,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:04:13,040 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:04:13,041 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:04:13,041 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:13,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:13,044 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:13,053 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 [2021-10-28 09:04:13,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:13,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:13,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:13,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:13,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:04:13,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:04:13,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:04:13,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:04:13,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:13,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:13,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:13,108 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:13,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:04:13,113 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 [2021-10-28 09:04:13,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:04:13,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:04:13,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:04:13,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:04:13,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:04:13,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:04:13,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:04:13,144 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:04:13,148 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 09:04:13,148 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:04:13,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:04:13,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:13,150 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:13,151 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:04:13,151 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:04:13,151 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:04:13,151 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2021-10-28 09:04:13,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:04:13,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:13,170 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:04:13,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:13,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:04:13,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:13,217 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:04:13,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:13,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:13,218 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 [2021-10-28 09:04:13,218 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:13,240 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 17 transitions. Complement of second has 5 states. [2021-10-28 09:04:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:04:13,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:13,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-28 09:04:13,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-28 09:04:13,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:13,241 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:04:13,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:13,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:04:13,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:13,279 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:04:13,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:13,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:13,280 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:04:13,280 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:13,292 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 17 transitions. Complement of second has 5 states. [2021-10-28 09:04:13,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:04:13,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:13,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-28 09:04:13,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-28 09:04:13,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:13,294 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:04:13,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:13,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:04:13,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:13,337 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:04:13,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:13,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:13,338 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:04:13,338 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:13,348 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 12 transitions. Complement of second has 4 states. [2021-10-28 09:04:13,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:04:13,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:13,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-10-28 09:04:13,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-28 09:04:13,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:13,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2021-10-28 09:04:13,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:13,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 09:04:13,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:04:13,350 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2021-10-28 09:04:13,351 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:04:13,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2021-10-28 09:04:13,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:04:13,351 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:04:13,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:04:13,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:04:13,352 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:04:13,352 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:04:13,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:04:13,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:04:13,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:04:13,353 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:13,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:04:13,353 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 09:04:13,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:04:13,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 09:04:13,353 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:04:13,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:04:13,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:04:13,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:04:13,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:04:13,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:04:13,354 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:04:13,354 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:04:13,354 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:04:13,354 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:04:13,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:04:13,354 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:04:13,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:04:13,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:04:13 BoogieIcfgContainer [2021-10-28 09:04:13,360 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:04:13,360 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:04:13,360 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:04:13,360 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:04:13,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:04:09" (3/4) ... [2021-10-28 09:04:13,363 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:04:13,363 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:04:13,364 INFO L168 Benchmark]: Toolchain (without parser) took 4548.16 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 86.1 MB in the beginning and 80.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:13,365 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 119.5 MB. Free memory was 91.3 MB in the beginning and 91.3 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:13,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.33 ms. Allocated memory is still 119.5 MB. Free memory was 85.8 MB in the beginning and 96.7 MB in the end (delta: -10.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:13,366 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.63 ms. Allocated memory is still 119.5 MB. Free memory was 96.7 MB in the beginning and 95.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:13,367 INFO L168 Benchmark]: Boogie Preprocessor took 17.28 ms. Allocated memory is still 119.5 MB. Free memory was 95.5 MB in the beginning and 94.8 MB in the end (delta: 701.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:13,367 INFO L168 Benchmark]: RCFGBuilder took 248.63 ms. Allocated memory is still 119.5 MB. Free memory was 94.3 MB in the beginning and 86.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:13,368 INFO L168 Benchmark]: BuchiAutomizer took 3995.39 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 86.8 MB in the beginning and 80.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:13,368 INFO L168 Benchmark]: Witness Printer took 2.87 ms. Allocated memory is still 144.7 MB. Free memory is still 80.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:13,371 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 119.5 MB. Free memory was 91.3 MB in the beginning and 91.3 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.33 ms. Allocated memory is still 119.5 MB. Free memory was 85.8 MB in the beginning and 96.7 MB in the end (delta: -10.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.63 ms. Allocated memory is still 119.5 MB. Free memory was 96.7 MB in the beginning and 95.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.28 ms. Allocated memory is still 119.5 MB. Free memory was 95.5 MB in the beginning and 94.8 MB in the end (delta: 701.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 248.63 ms. Allocated memory is still 119.5 MB. Free memory was 94.3 MB in the beginning and 86.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3995.39 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 86.8 MB in the beginning and 80.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. * Witness Printer took 2.87 ms. Allocated memory is still 144.7 MB. Free memory is still 80.1 MB. 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 26 SDtfs, 20 SDslu, 6 SDs, 0 SdLazy, 35 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax170 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:04:13,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:13,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-28 09:04:13,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae961f0-b7d2-43e4-803e-05c7a47206d9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...