./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/parity1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/parity1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF --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 ed2ff0363c37c4f8bc69ce9897c3eec7ff5051bc017ef25a2bfef9c8bd7c846c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:36:26,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:36:26,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:36:26,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:36:26,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:36:26,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:36:26,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:36:26,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:36:26,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:36:26,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:36:26,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:36:26,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:36:26,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:36:26,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:36:26,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:36:26,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:36:26,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:36:26,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:36:26,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:36:26,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:36:26,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:36:26,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:36:26,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:36:26,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:36:26,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:36:26,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:36:26,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:36:26,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:36:26,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:36:26,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:36:26,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:36:26,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:36:26,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:36:26,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:36:26,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:36:26,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:36:26,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:36:26,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:36:26,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:36:26,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:36:26,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:36:26,234 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 05:36:26,259 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:36:26,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:36:26,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:36:26,265 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:36:26,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:36:26,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:36:26,267 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:36:26,267 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 05:36:26,268 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 05:36:26,268 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 05:36:26,269 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 05:36:26,269 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 05:36:26,269 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 05:36:26,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:36:26,270 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:36:26,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:36:26,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:36:26,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 05:36:26,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 05:36:26,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 05:36:26,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:36:26,272 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 05:36:26,272 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:36:26,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 05:36:26,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:36:26,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:36:26,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:36:26,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:36:26,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:36:26,274 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 05:36:26,274 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_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed2ff0363c37c4f8bc69ce9897c3eec7ff5051bc017ef25a2bfef9c8bd7c846c [2021-11-20 05:36:26,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:36:26,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:36:26,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:36:26,630 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:36:26,631 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:36:26,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-bwb/parity1.i [2021-11-20 05:36:26,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/data/96a749a93/bc0297565a304c86b66e52063a324fed/FLAG582c36e5e [2021-11-20 05:36:27,125 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:36:27,126 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/sv-benchmarks/c/termination-bwb/parity1.i [2021-11-20 05:36:27,139 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/data/96a749a93/bc0297565a304c86b66e52063a324fed/FLAG582c36e5e [2021-11-20 05:36:27,511 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/data/96a749a93/bc0297565a304c86b66e52063a324fed [2021-11-20 05:36:27,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:36:27,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:36:27,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:36:27,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:36:27,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:36:27,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:36:27" (1/1) ... [2021-11-20 05:36:27,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dfdb019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27, skipping insertion in model container [2021-11-20 05:36:27,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:36:27" (1/1) ... [2021-11-20 05:36:27,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:36:27,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:36:27,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:36:27,682 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:36:27,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:36:27,709 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:36:27,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27 WrapperNode [2021-11-20 05:36:27,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:36:27,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:36:27,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:36:27,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:36:27,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27" (1/1) ... [2021-11-20 05:36:27,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27" (1/1) ... [2021-11-20 05:36:27,738 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2021-11-20 05:36:27,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:36:27,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:36:27,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:36:27,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:36:27,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27" (1/1) ... [2021-11-20 05:36:27,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27" (1/1) ... [2021-11-20 05:36:27,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27" (1/1) ... [2021-11-20 05:36:27,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27" (1/1) ... [2021-11-20 05:36:27,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27" (1/1) ... [2021-11-20 05:36:27,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27" (1/1) ... [2021-11-20 05:36:27,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27" (1/1) ... [2021-11-20 05:36:27,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:36:27,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:36:27,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:36:27,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:36:27,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27" (1/1) ... [2021-11-20 05:36:27,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:27,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:27,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:27,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 05:36:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:36:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:36:27,910 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:36:27,912 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:36:27,981 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:36:27,988 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:36:27,988 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 05:36:27,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:27 BoogieIcfgContainer [2021-11-20 05:36:27,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:36:27,992 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 05:36:27,992 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 05:36:27,999 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 05:36:28,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:36:28,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:36:27" (1/3) ... [2021-11-20 05:36:28,003 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@da9fa1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:36:28, skipping insertion in model container [2021-11-20 05:36:28,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:36:28,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:27" (2/3) ... [2021-11-20 05:36:28,004 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@da9fa1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:36:28, skipping insertion in model container [2021-11-20 05:36:28,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:36:28,004 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:27" (3/3) ... [2021-11-20 05:36:28,010 INFO L388 chiAutomizerObserver]: Analyzing ICFG parity1.i [2021-11-20 05:36:28,072 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 05:36:28,072 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 05:36:28,072 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 05:36:28,072 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 05:36:28,072 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 05:36:28,073 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 05:36:28,073 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 05:36:28,073 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 05:36:28,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:28,105 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-20 05:36:28,105 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:36:28,105 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:36:28,110 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 05:36:28,110 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-20 05:36:28,110 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 05:36:28,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:28,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-20 05:36:28,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:36:28,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:36:28,112 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 05:36:28,112 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-20 05:36:28,117 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5#L13true assume !(~v~0 < 0); 8#L14-1true [2021-11-20 05:36:28,118 INFO L793 eck$LassoCheckResult]: Loop: 8#L14-1true assume !!(~v~0 > 0);main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;~v~0 := ~bitwiseAnd(~v~0, ~v~0 - 1); 8#L14-1true [2021-11-20 05:36:28,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:28,122 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-11-20 05:36:28,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:28,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435757543] [2021-11-20 05:36:28,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:28,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:28,240 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:28,276 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:28,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:28,279 INFO L85 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2021-11-20 05:36:28,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:28,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738483895] [2021-11-20 05:36:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:28,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:28,289 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:28,294 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:28,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:28,295 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2021-11-20 05:36:28,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:28,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074695962] [2021-11-20 05:36:28,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:28,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:28,312 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:28,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:28,377 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:36:28,379 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:36:28,379 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:36:28,379 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:36:28,379 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 05:36:28,379 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:28,380 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:36:28,380 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:36:28,380 INFO L133 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration1_Loop [2021-11-20 05:36:28,380 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:36:28,381 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:36:28,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:36:28,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:36:28,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:36:28,457 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:36:28,458 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 05:36:28,460 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:28,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:28,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:28,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 05:36:28,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:36:28,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:28,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:28,558 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:28,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:28,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:28,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 05:36:28,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:28,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 05:36:28,609 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 05:36:28,609 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~parity~0=0} Honda state: {~parity~0=0} Generalized eigenvectors: [{~parity~0=4}, {~parity~0=-8}, {~parity~0=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2021-11-20 05:36:28,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:28,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:28,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:28,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:28,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 05:36:28,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:36:28,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:28,678 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 05:36:28,678 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 05:36:28,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:28,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:28,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:28,700 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:28,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 05:36:28,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:36:28,709 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:28,725 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 05:36:28,725 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~v~0=1} Honda state: {~v~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 05:36:28,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-20 05:36:28,810 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:36:28,810 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:36:28,810 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:36:28,811 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:36:28,811 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 05:36:28,811 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:28,811 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:36:28,811 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:36:28,811 INFO L133 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration1_Lasso [2021-11-20 05:36:28,811 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:36:28,811 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:36:28,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:36:28,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:36:28,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:36:28,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:36:28,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:36:28,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:36:28,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:36:28,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:36:28,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:36:28,932 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:36:28,932 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 05:36:28,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:28,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:28,934 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:28,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:36:28,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:28,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 05:36:28,973 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 05:36:28,973 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~v~0=0} Honda state: {~v~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 05:36:29,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:29,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:29,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:29,014 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:29,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 05:36:29,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:36:29,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:29,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:29,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:29,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:29,063 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:29,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 05:36:29,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 05:36:29,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:29,090 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 05:36:29,090 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~parity~0=0} Honda state: {~parity~0=0} Generalized eigenvectors: [{~parity~0=4}, {~parity~0=-8}, {~parity~0=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2021-11-20 05:36:29,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-11-20 05:36:29,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:29,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:29,123 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:29,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 05:36:29,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:36:29,127 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:29,161 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 05:36:29,161 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1.base=0} Honda state: {ULTIMATE.start_main_~z~0#1.base=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 05:36:29,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:29,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:29,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:29,196 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:29,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:36:29,199 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:29,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 05:36:29,216 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 05:36:29,217 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~y~0=0} Honda state: {~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 05:36:29,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:29,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:29,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:29,243 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:29,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 05:36:29,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:36:29,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:29,265 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 05:36:29,265 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 05:36:29,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-11-20 05:36:29,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:29,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:29,286 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:29,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 05:36:29,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:36:29,288 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:29,301 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 05:36:29,301 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 05:36:29,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:29,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:29,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:29,353 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:29,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:36:29,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:29,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 05:36:29,384 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 05:36:29,385 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 05:36:29,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:29,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:29,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:29,405 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:29,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-20 05:36:29,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:36:29,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:29,445 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 05:36:29,445 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1.offset=0} Honda state: {ULTIMATE.start_main_~z~0#1.offset=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 05:36:29,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:29,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:36:29,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:29,485 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:29,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:36:29,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:36:29,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-20 05:36:29,522 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 05:36:29,523 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 05:36:29,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:29,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:36:29 BoogieIcfgContainer [2021-11-20 05:36:29,549 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 05:36:29,549 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:36:29,549 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:36:29,550 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:36:29,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:27" (3/4) ... [2021-11-20 05:36:29,553 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 05:36:29,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:36:29,554 INFO L158 Benchmark]: Toolchain (without parser) took 2038.22ms. Allocated memory is still 107.0MB. Free memory was 69.5MB in the beginning and 51.5MB in the end (delta: 18.0MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2021-11-20 05:36:29,554 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:36:29,555 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.25ms. Allocated memory is still 107.0MB. Free memory was 69.3MB in the beginning and 60.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:36:29,556 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.35ms. Allocated memory is still 107.0MB. Free memory was 60.5MB in the beginning and 59.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:36:29,556 INFO L158 Benchmark]: Boogie Preprocessor took 22.68ms. Allocated memory is still 107.0MB. Free memory was 59.1MB in the beginning and 58.1MB in the end (delta: 962.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:36:29,557 INFO L158 Benchmark]: RCFGBuilder took 228.15ms. Allocated memory is still 107.0MB. Free memory was 58.0MB in the beginning and 79.5MB in the end (delta: -21.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 05:36:29,557 INFO L158 Benchmark]: BuchiAutomizer took 1557.09ms. Allocated memory is still 107.0MB. Free memory was 79.1MB in the beginning and 52.0MB in the end (delta: 27.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2021-11-20 05:36:29,558 INFO L158 Benchmark]: Witness Printer took 3.46ms. Allocated memory is still 107.0MB. Free memory was 52.0MB in the beginning and 51.5MB in the end (delta: 529.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:36:29,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.25ms. Allocated memory is still 107.0MB. Free memory was 69.3MB in the beginning and 60.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.35ms. Allocated memory is still 107.0MB. Free memory was 60.5MB in the beginning and 59.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.68ms. Allocated memory is still 107.0MB. Free memory was 59.1MB in the beginning and 58.1MB in the end (delta: 962.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 228.15ms. Allocated memory is still 107.0MB. Free memory was 58.0MB in the beginning and 79.5MB in the end (delta: -21.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1557.09ms. Allocated memory is still 107.0MB. Free memory was 79.1MB in the beginning and 52.0MB in the end (delta: 27.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Witness Printer took 3.46ms. Allocated memory is still 107.0MB. Free memory was 52.0MB in the beginning and 51.5MB in the end (delta: 529.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one module whose termination is unknown. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq212 hnf100 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: v & (v - 1) [17] (Reason bitwiseAnd) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(~v~0 < 0);" Loop: "assume !!(~v~0 > 0);main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;~v~0 := ~bitwiseAnd(~v~0, ~v~0 - 1);" RESULT: Ultimate could not prove your program: unable to determine termination [2021-11-20 05:36:29,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1324afa6-8000-403f-9489-15adb75f42fa/bin/uautomizer-DQz5hQGWxF/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN