./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY --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 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:57:14,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:57:14,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:57:15,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:57:15,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:57:15,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:57:15,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:57:15,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:57:15,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:57:15,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:57:15,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:57:15,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:57:15,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:57:15,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:57:15,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:57:15,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:57:15,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:57:15,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:57:15,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:57:15,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:57:15,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:57:15,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:57:15,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:57:15,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:57:15,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:57:15,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:57:15,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:57:15,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:57:15,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:57:15,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:57:15,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:57:15,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:57:15,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:57:15,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:57:15,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:57:15,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:57:15,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:57:15,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:57:15,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:57:15,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:57:15,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:57:15,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-07 07:57:15,257 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:57:15,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:57:15,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:57:15,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:57:15,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:57:15,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:57:15,277 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:57:15,277 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 07:57:15,277 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 07:57:15,277 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 07:57:15,279 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 07:57:15,279 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 07:57:15,279 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 07:57:15,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:57:15,280 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:57:15,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:57:15,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:57:15,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 07:57:15,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 07:57:15,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 07:57:15,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:57:15,281 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 07:57:15,282 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:57:15,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 07:57:15,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:57:15,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:57:15,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:57:15,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:57:15,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:57:15,286 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 07:57:15,286 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_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 [2021-11-07 07:57:15,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:57:15,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:57:15,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:57:15,725 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:57:15,726 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:57:15,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2021-11-07 07:57:15,814 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/data/2fa0f4d09/28be58ba97064af8b9957493ddd179e2/FLAG384904f8f [2021-11-07 07:57:16,331 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:57:16,333 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2021-11-07 07:57:16,347 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/data/2fa0f4d09/28be58ba97064af8b9957493ddd179e2/FLAG384904f8f [2021-11-07 07:57:16,721 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/data/2fa0f4d09/28be58ba97064af8b9957493ddd179e2 [2021-11-07 07:57:16,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:57:16,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:57:16,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:57:16,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:57:16,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:57:16,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:57:16" (1/1) ... [2021-11-07 07:57:16,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b797a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:16, skipping insertion in model container [2021-11-07 07:57:16,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:57:16" (1/1) ... [2021-11-07 07:57:16,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:57:16,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:57:17,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:57:17,035 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:57:17,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:57:17,072 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:57:17,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:17 WrapperNode [2021-11-07 07:57:17,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:57:17,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:57:17,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:57:17,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:57:17,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:17" (1/1) ... [2021-11-07 07:57:17,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:17" (1/1) ... [2021-11-07 07:57:17,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:57:17,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:57:17,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:57:17,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:57:17,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:17" (1/1) ... [2021-11-07 07:57:17,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:17" (1/1) ... [2021-11-07 07:57:17,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:17" (1/1) ... [2021-11-07 07:57:17,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:17" (1/1) ... [2021-11-07 07:57:17,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:17" (1/1) ... [2021-11-07 07:57:17,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:17" (1/1) ... [2021-11-07 07:57:17,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:17" (1/1) ... [2021-11-07 07:57:17,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:57:17,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:57:17,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:57:17,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:57:17,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:17" (1/1) ... [2021-11-07 07:57:17,149 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:17,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:17,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:17,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 07:57:17,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:57:17,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:57:17,394 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:57:17,395 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-07 07:57:17,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:57:17 BoogieIcfgContainer [2021-11-07 07:57:17,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:57:17,399 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 07:57:17,399 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 07:57:17,403 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 07:57:17,404 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:57:17,404 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 07:57:16" (1/3) ... [2021-11-07 07:57:17,406 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@577bcf1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:57:17, skipping insertion in model container [2021-11-07 07:57:17,406 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:57:17,406 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:57:17" (2/3) ... [2021-11-07 07:57:17,407 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@577bcf1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:57:17, skipping insertion in model container [2021-11-07 07:57:17,407 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:57:17,407 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:57:17" (3/3) ... [2021-11-07 07:57:17,409 INFO L389 chiAutomizerObserver]: Analyzing ICFG Cairo_step2-1.c [2021-11-07 07:57:17,462 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 07:57:17,462 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 07:57:17,462 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 07:57:17,462 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 07:57:17,463 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 07:57:17,463 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 07:57:17,463 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 07:57:17,463 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 07:57:17,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:57:17,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-07 07:57:17,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:57:17,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:57:17,505 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-07 07:57:17,505 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-07 07:57:17,506 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 07:57:17,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:57:17,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-07 07:57:17,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:57:17,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:57:17,508 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-07 07:57:17,508 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-07 07:57:17,516 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 5#L15true assume main_~x~0 > 0; 6#L16-2true [2021-11-07 07:57:17,516 INFO L793 eck$LassoCheckResult]: Loop: 6#L16-2true assume !!(0 != main_~x~0 && -1 != main_~x~0);main_~x~0 := main_~x~0 - 2; 6#L16-2true [2021-11-07 07:57:17,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:57:17,523 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-11-07 07:57:17,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:57:17,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702160665] [2021-11-07 07:57:17,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:57:17,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:57:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:57:17,634 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:57:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:57:17,657 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:57:17,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:57:17,661 INFO L85 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2021-11-07 07:57:17,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:57:17,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105174187] [2021-11-07 07:57:17,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:57:17,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:57:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:57:17,687 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:57:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:57:17,693 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:57:17,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:57:17,696 INFO L85 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2021-11-07 07:57:17,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:57:17,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277013707] [2021-11-07 07:57:17,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:57:17,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:57:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:57:17,704 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:57:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:57:17,714 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:57:17,817 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:57:17,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:57:17,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:57:17,823 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:57:17,823 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 07:57:17,823 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:17,823 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:57:17,824 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:57:17,824 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Loop [2021-11-07 07:57:17,824 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:57:17,824 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:57:17,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:17,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:17,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:18,107 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:57:18,108 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 07:57:18,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:18,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:18,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:18,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:57:18,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:57:18,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 07:57:18,146 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:57:18,146 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: [] [2021-11-07 07:57:18,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:57:18,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:18,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:18,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:18,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 07:57:18,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:57:18,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:57:18,209 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:57:18,209 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:57:18,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-11-07 07:57:18,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:18,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:18,239 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:18,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 07:57:18,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:57:18,254 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:57:18,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:57:18,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:18,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:18,307 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:18,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 07:57:18,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 07:57:18,309 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:57:18,342 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:57:18,342 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-2} Honda state: {ULTIMATE.start_main_~x~0=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 1] Nus: [1, 0] [2021-11-07 07:57:18,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:57:18,403 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:57:18,404 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:57:18,404 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:57:18,404 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:57:18,404 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 07:57:18,404 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:18,404 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:57:18,405 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:57:18,405 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Lasso [2021-11-07 07:57:18,405 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:57:18,405 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:57:18,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:18,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:18,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:18,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:18,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:18,520 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:57:18,520 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 07:57:18,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:18,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:18,522 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:18,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:57:18,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:57:18,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 07:57:18,570 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:57:18,570 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:57:18,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:57:18,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:18,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:18,611 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:18,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-07 07:57:18,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:57:18,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:57:18,646 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:57:18,646 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:57:18,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-07 07:57:18,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:18,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:18,675 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:18,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-07 07:57:18,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:57:18,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:57:18,699 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:57:18,699 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:57:18,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-11-07 07:57:18,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:18,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:18,723 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:18,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-07 07:57:18,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:57:18,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:57:18,738 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:57:18,738 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:57:18,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-07 07:57:18,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:18,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:18,762 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:18,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-07 07:57:18,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:57:18,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:57:18,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-07 07:57:18,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:18,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:18,836 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:18,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-07 07:57:18,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 07:57:18,839 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:57:18,907 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 07:57:18,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-07 07:57:18,910 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:57:18,910 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:57:18,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:57:18,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:57:18,911 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 07:57:18,911 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:18,911 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:57:18,911 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:57:18,911 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Lasso [2021-11-07 07:57:18,911 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:57:18,911 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:57:18,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:18,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:18,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:18,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:18,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:57:19,062 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:57:19,067 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 07:57:19,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:19,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:19,076 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:19,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-07 07:57:19,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:57:19,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:57:19,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:57:19,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:57:19,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:57:19,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 07:57:19,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 07:57:19,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:57:19,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-07 07:57:19,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:19,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:19,170 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:19,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:57:19,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-07 07:57:19,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:57:19,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:57:19,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:57:19,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:57:19,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 07:57:19,194 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 07:57:19,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:57:19,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-07 07:57:19,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:19,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:19,226 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:19,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-07 07:57:19,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:57:19,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:57:19,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:57:19,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:57:19,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:57:19,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:57:19,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:57:19,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:57:19,239 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:57:19,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-11-07 07:57:19,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:19,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:19,268 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:19,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-07 07:57:19,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:57:19,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:57:19,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:57:19,289 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-07 07:57:19,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:57:19,307 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-11-07 07:57:19,307 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-11-07 07:57:19,342 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 07:57:19,374 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-11-07 07:57:19,374 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-11-07 07:57:19,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:57:19,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:57:19,386 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:57:19,403 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 07:57:19,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-07 07:57:19,432 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-11-07 07:57:19,432 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 07:57:19,433 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~x~0 + 1 >= 0] [2021-11-07 07:57:19,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-07 07:57:19,477 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-11-07 07:57:19,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:57:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:57:19,522 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 07:57:19,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:57:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:57:19,537 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 07:57:19,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:57:19,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:57:19,554 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-07 07:57:19,555 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2021-11-07 07:57:19,603 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 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 20 states and 23 transitions. Complement of second has 5 states. [2021-11-07 07:57:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-07 07:57:19,606 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) [2021-11-07 07:57:19,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-11-07 07:57:19,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 1 letters. [2021-11-07 07:57:19,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:57:19,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-07 07:57:19,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:57:19,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-07 07:57:19,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:57:19,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2021-11-07 07:57:19,614 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 07:57:19,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2021-11-07 07:57:19,617 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 07:57:19,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 07:57:19,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 07:57:19,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:57:19,619 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:57:19,619 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:57:19,619 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:57:19,619 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 07:57:19,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-07 07:57:19,620 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 07:57:19,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-07 07:57:19,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 07:57:19 BoogieIcfgContainer [2021-11-07 07:57:19,626 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 07:57:19,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:57:19,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:57:19,627 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:57:19,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:57:17" (3/4) ... [2021-11-07 07:57:19,631 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 07:57:19,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:57:19,633 INFO L168 Benchmark]: Toolchain (without parser) took 2903.47 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 49.9 MB in the beginning and 66.2 MB in the end (delta: -16.3 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2021-11-07 07:57:19,634 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 88.1 MB. Free memory was 66.2 MB in the beginning and 66.1 MB in the end (delta: 51.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:57:19,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.85 ms. Allocated memory is still 88.1 MB. Free memory was 49.7 MB in the beginning and 65.4 MB in the end (delta: -15.7 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2021-11-07 07:57:19,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.17 ms. Allocated memory is still 88.1 MB. Free memory was 65.2 MB in the beginning and 64.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:57:19,636 INFO L168 Benchmark]: Boogie Preprocessor took 22.15 ms. Allocated memory is still 88.1 MB. Free memory was 64.1 MB in the beginning and 63.1 MB in the end (delta: 911.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:57:19,637 INFO L168 Benchmark]: RCFGBuilder took 261.20 ms. Allocated memory is still 88.1 MB. Free memory was 63.1 MB in the beginning and 55.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 07:57:19,638 INFO L168 Benchmark]: BuchiAutomizer took 2227.69 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 55.6 MB in the beginning and 66.2 MB in the end (delta: -10.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:57:19,638 INFO L168 Benchmark]: Witness Printer took 4.47 ms. Allocated memory is still 107.0 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:57:19,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 88.1 MB. Free memory was 66.2 MB in the beginning and 66.1 MB in the end (delta: 51.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 343.85 ms. Allocated memory is still 88.1 MB. Free memory was 49.7 MB in the beginning and 65.4 MB in the end (delta: -15.7 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.17 ms. Allocated memory is still 88.1 MB. Free memory was 65.2 MB in the beginning and 64.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.15 ms. Allocated memory is still 88.1 MB. Free memory was 64.1 MB in the beginning and 63.1 MB in the end (delta: 911.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 261.20 ms. Allocated memory is still 88.1 MB. Free memory was 63.1 MB in the beginning and 55.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2227.69 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 55.6 MB in the beginning and 66.2 MB in the end (delta: -10.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.47 ms. Allocated memory is still 107.0 MB. Free memory is still 66.2 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax169 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf97 smp100 dnf262 smp40 tf101 neg94 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 165ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-07 07:57:19,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-07 07:57:19,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f5b397-ce31-41f4-9562-8529a99b78a6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE