./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/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_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/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_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/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 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 09:21:34,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:21:34,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:21:34,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:21:34,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:21:34,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:21:34,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:21:34,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:21:34,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:21:34,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:21:34,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:21:34,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:21:34,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:21:34,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:21:34,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:21:34,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:21:34,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:21:34,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:21:34,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:21:34,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:21:34,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:21:34,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:21:34,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:21:34,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:21:34,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:21:34,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:21:34,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:21:34,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:21:34,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:21:34,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:21:34,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:21:34,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:21:34,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:21:34,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:21:34,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:21:34,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:21:34,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:21:34,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:21:34,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:21:34,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:21:34,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:21:34,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:21:34,236 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:21:34,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:21:34,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:21:34,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:21:34,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:21:34,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:21:34,239 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:21:34,240 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:21:34,240 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:21:34,241 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:21:34,241 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:21:34,241 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:21:34,242 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:21:34,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:21:34,243 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:21:34,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:21:34,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:21:34,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:21:34,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:21:34,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:21:34,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:21:34,245 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:21:34,246 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:21:34,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:21:34,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:21:34,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:21:34,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:21:34,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:21:34,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:21:34,250 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:21:34,250 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_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 [2021-10-28 09:21:34,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:21:34,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:21:34,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:21:34,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:21:34,534 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:21:34,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2021-10-28 09:21:34,612 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/data/525dd34d8/2ec55b77e5f24f06ae8e4d41fc09d198/FLAG8317e1a30 [2021-10-28 09:21:35,043 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:21:35,044 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2021-10-28 09:21:35,055 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/data/525dd34d8/2ec55b77e5f24f06ae8e4d41fc09d198/FLAG8317e1a30 [2021-10-28 09:21:35,432 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/data/525dd34d8/2ec55b77e5f24f06ae8e4d41fc09d198 [2021-10-28 09:21:35,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:21:35,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:21:35,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:21:35,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:21:35,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:21:35,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:21:35" (1/1) ... [2021-10-28 09:21:35,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e513fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35, skipping insertion in model container [2021-10-28 09:21:35,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:21:35" (1/1) ... [2021-10-28 09:21:35,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:21:35,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:21:35,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:21:35,608 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:21:35,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:21:35,653 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:21:35,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35 WrapperNode [2021-10-28 09:21:35,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:21:35,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:21:35,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:21:35,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:21:35,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35" (1/1) ... [2021-10-28 09:21:35,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35" (1/1) ... [2021-10-28 09:21:35,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:21:35,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:21:35,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:21:35,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:21:35,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35" (1/1) ... [2021-10-28 09:21:35,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35" (1/1) ... [2021-10-28 09:21:35,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35" (1/1) ... [2021-10-28 09:21:35,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35" (1/1) ... [2021-10-28 09:21:35,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35" (1/1) ... [2021-10-28 09:21:35,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35" (1/1) ... [2021-10-28 09:21:35,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35" (1/1) ... [2021-10-28 09:21:35,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:21:35,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:21:35,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:21:35,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:21:35,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35" (1/1) ... [2021-10-28 09:21:35,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:35,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:35,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:35,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:21:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:21:35,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:21:35,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:21:35,942 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 09:21:35,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:21:35 BoogieIcfgContainer [2021-10-28 09:21:35,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:21:35,947 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:21:35,948 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:21:35,951 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:21:35,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:21:35,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:21:35" (1/3) ... [2021-10-28 09:21:35,955 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25fe15b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:21:35, skipping insertion in model container [2021-10-28 09:21:35,956 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:21:35,956 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:35" (2/3) ... [2021-10-28 09:21:35,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25fe15b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:21:35, skipping insertion in model container [2021-10-28 09:21:35,957 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:21:35,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:21:35" (3/3) ... [2021-10-28 09:21:35,959 INFO L389 chiAutomizerObserver]: Analyzing ICFG Cairo_step2-1.c [2021-10-28 09:21:36,021 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:21:36,021 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:21:36,022 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:21:36,022 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:21:36,022 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:21:36,022 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:21:36,022 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:21:36,023 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:21:36,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:21:36,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:21:36,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:21:36,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:21:36,067 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:21:36,068 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:21:36,068 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:21:36,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:21:36,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:21:36,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:21:36,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:21:36,070 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:21:36,070 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:21:36,078 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 [2021-10-28 09:21:36,078 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 [2021-10-28 09:21:36,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:21:36,088 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-10-28 09:21:36,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:21:36,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118157901] [2021-10-28 09:21:36,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:21:36,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:21:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:36,173 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:21:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:36,190 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:21:36,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:21:36,194 INFO L85 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2021-10-28 09:21:36,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:21:36,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080047477] [2021-10-28 09:21:36,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:21:36,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:21:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:36,205 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:21:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:36,210 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:21:36,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:21:36,212 INFO L85 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2021-10-28 09:21:36,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:21:36,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731454053] [2021-10-28 09:21:36,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:21:36,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:21:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:36,222 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:21:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:36,233 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:21:36,319 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:21:36,320 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:21:36,320 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:21:36,320 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:21:36,320 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:21:36,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:36,321 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:21:36,321 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:21:36,321 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Loop [2021-10-28 09:21:36,321 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:21:36,321 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:21:36,339 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 09:21:36,347 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 09:21:36,351 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 09:21:36,492 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:21:36,493 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:21:36,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:36,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:36,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:36,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:21:36,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:21:36,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:21:36,547 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:21:36,547 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 09:21:36,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 09:21:36,581 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:36,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:36,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:36,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:21:36,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:21:36,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:21:36,616 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:21:36,616 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 09:21:36,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:36,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:36,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:36,652 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:36,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:21:36,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:21:36,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:21:36,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:36,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:36,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:36,701 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:36,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:21:36,711 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:21:36,711 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:21:36,749 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:21:36,750 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] [2021-10-28 09:21:36,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 09:21:36,818 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:21:36,818 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:21:36,819 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:21:36,819 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:21:36,819 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:21:36,819 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:36,819 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:21:36,819 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:21:36,819 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Lasso [2021-10-28 09:21:36,819 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:21:36,820 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:21:36,822 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 09:21:36,832 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 09:21:36,837 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 09:21:36,844 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 09:21:36,851 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 09:21:37,032 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:21:37,032 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:21:37,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:37,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:37,043 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:37,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:21:37,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:21:37,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:21:37,107 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:21:37,108 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: [] [2021-10-28 09:21:37,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-28 09:21:37,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:37,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:37,187 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:37,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:21:37,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:21:37,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:21:37,224 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:21:37,224 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: [] [2021-10-28 09:21:37,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:37,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:37,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:37,259 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:37,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:21:37,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:21:37,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:21:37,299 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:21:37,299 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: [] [2021-10-28 09:21:37,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-28 09:21:37,327 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:37,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:37,328 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:37,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:21:37,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:21:37,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:21:37,342 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:21:37,342 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: [] [2021-10-28 09:21:37,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:37,367 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:37,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:37,369 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:37,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:21:37,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:21:37,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:21:37,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:37,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:37,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:37,426 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:37,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:21:37,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:21:37,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:21:37,473 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:21:37,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:37,479 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:21:37,479 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:21:37,479 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:21:37,479 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:21:37,479 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:21:37,480 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:37,480 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:21:37,480 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:21:37,480 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Lasso [2021-10-28 09:21:37,480 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:21:37,480 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:21:37,482 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 09:21:37,491 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 09:21:37,497 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 09:21:37,500 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 09:21:37,514 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 09:21:37,632 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:21:37,636 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:21:37,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:37,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:37,640 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:37,647 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 09:21:37,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:21:37,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:21:37,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:21:37,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:21:37,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:21:37,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:21:37,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:21:37,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:21:37,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:37,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:37,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:37,717 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:37,727 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 09:21:37,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:21:37,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:21:37,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:21:37,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:21:37,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:21:37,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:21:37,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:21:37,763 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:21:37,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:37,796 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:37,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:37,797 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:37,807 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 09:21:37,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:21:37,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:21:37,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:21:37,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:21:37,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:21:37,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:21:37,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:21:37,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:21:37,839 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:21:37,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:37,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:37,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:37,876 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:37,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:21:37,882 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 09:21:37,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:21:37,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:21:37,890 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 09:21:37,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:21:37,907 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-28 09:21:37,907 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 09:21:37,931 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:21:37,961 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-28 09:21:37,961 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-10-28 09:21:37,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:37,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:37,964 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:37,991 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:21:38,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:21:38,018 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-10-28 09:21:38,018 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:21:38,019 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] [2021-10-28 09:21:38,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:38,057 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-28 09:21:38,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:21:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:21:38,101 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:21:38,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:21:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:21:38,119 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:21:38,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:21:38,120 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 09:21:38,140 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 09:21:38,141 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) [2021-10-28 09:21:38,197 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. [2021-10-28 09:21:38,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:21:38,199 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 09:21:38,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-28 09:21:38,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-28 09:21:38,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:21:38,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-28 09:21:38,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:21:38,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 09:21:38,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:21:38,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2021-10-28 09:21:38,208 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:21:38,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2021-10-28 09:21:38,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:21:38,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:21:38,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:21:38,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:21:38,212 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:21:38,213 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:21:38,213 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:21:38,213 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:21:38,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:21:38,213 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:21:38,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:21:38,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:21:38 BoogieIcfgContainer [2021-10-28 09:21:38,219 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:21:38,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:21:38,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:21:38,220 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:21:38,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:21:35" (3/4) ... [2021-10-28 09:21:38,224 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:21:38,224 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:21:38,227 INFO L168 Benchmark]: Toolchain (without parser) took 2788.71 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 66.4 MB in the beginning and 67.1 MB in the end (delta: -701.1 kB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:21:38,228 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory was 71.2 MB in the beginning and 71.2 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:21:38,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.31 ms. Allocated memory is still 100.7 MB. Free memory was 66.2 MB in the beginning and 78.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:21:38,235 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.91 ms. Allocated memory is still 100.7 MB. Free memory was 78.0 MB in the beginning and 76.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:21:38,235 INFO L168 Benchmark]: Boogie Preprocessor took 16.90 ms. Allocated memory is still 100.7 MB. Free memory was 76.7 MB in the beginning and 75.9 MB in the end (delta: 754.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:21:38,236 INFO L168 Benchmark]: RCFGBuilder took 243.30 ms. Allocated memory is still 100.7 MB. Free memory was 75.9 MB in the beginning and 68.3 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:21:38,236 INFO L168 Benchmark]: BuchiAutomizer took 2271.51 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 68.3 MB in the beginning and 67.9 MB in the end (delta: 413.7 kB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:21:38,240 INFO L168 Benchmark]: Witness Printer took 4.21 ms. Allocated memory is still 121.6 MB. Free memory was 67.9 MB in the beginning and 67.1 MB in the end (delta: 732.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:21:38,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory was 71.2 MB in the beginning and 71.2 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 215.31 ms. Allocated memory is still 100.7 MB. Free memory was 66.2 MB in the beginning and 78.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.91 ms. Allocated memory is still 100.7 MB. Free memory was 78.0 MB in the beginning and 76.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.90 ms. Allocated memory is still 100.7 MB. Free memory was 76.7 MB in the beginning and 75.9 MB in the end (delta: 754.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 243.30 ms. Allocated memory is still 100.7 MB. Free memory was 75.9 MB in the beginning and 68.3 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2271.51 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 68.3 MB in the beginning and 67.9 MB in the end (delta: 413.7 kB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.21 ms. Allocated memory is still 121.6 MB. Free memory was 67.9 MB in the beginning and 67.1 MB in the end (delta: 732.7 kB). Peak memory consumption was 2.1 MB. 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 2.2s 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: 142ms 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! [2021-10-28 09:21:38,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:38,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a3beb8f-6ea5-45e8-9126-b98f5c423f61/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...