./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Sequence.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_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/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_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Sequence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/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_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/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 95ccbbbc448c04acb65590867534531dd0d1de0ae6cfb9bc69f5ca4c10abccd4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:05:31,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:05:31,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:05:31,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:05:31,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:05:31,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:05:31,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:05:31,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:05:31,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:05:31,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:05:31,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:05:31,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:05:31,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:05:31,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:05:31,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:05:31,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:05:31,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:05:31,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:05:31,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:05:31,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:05:31,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:05:31,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:05:31,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:05:31,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:05:31,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:05:31,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:05:31,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:05:31,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:05:31,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:05:31,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:05:31,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:05:31,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:05:31,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:05:31,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:05:31,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:05:31,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:05:31,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:05:31,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:05:31,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:05:31,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:05:31,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:05:31,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:05:32,041 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:05:32,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:05:32,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:05:32,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:05:32,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:05:32,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:05:32,045 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:05:32,045 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:05:32,045 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:05:32,046 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:05:32,046 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:05:32,046 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:05:32,047 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:05:32,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:05:32,047 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:05:32,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:05:32,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:05:32,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:05:32,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:05:32,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:05:32,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:05:32,049 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:05:32,050 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:05:32,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:05:32,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:05:32,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:05:32,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:05:32,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:05:32,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:05:32,053 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:05:32,053 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_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95ccbbbc448c04acb65590867534531dd0d1de0ae6cfb9bc69f5ca4c10abccd4 [2021-10-28 09:05:32,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:05:32,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:05:32,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:05:32,534 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:05:32,535 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:05:32,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-restricted-15/Sequence.c [2021-10-28 09:05:32,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/data/8032ff88b/5b56eea4859d4015aceecf8b8d69140c/FLAG14730efea [2021-10-28 09:05:33,203 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:05:33,205 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/sv-benchmarks/c/termination-restricted-15/Sequence.c [2021-10-28 09:05:33,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/data/8032ff88b/5b56eea4859d4015aceecf8b8d69140c/FLAG14730efea [2021-10-28 09:05:33,532 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/data/8032ff88b/5b56eea4859d4015aceecf8b8d69140c [2021-10-28 09:05:33,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:05:33,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:05:33,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:05:33,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:05:33,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:05:33,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:05:33" (1/1) ... [2021-10-28 09:05:33,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a39dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33, skipping insertion in model container [2021-10-28 09:05:33,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:05:33" (1/1) ... [2021-10-28 09:05:33,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:05:33,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:05:33,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:05:33,752 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:05:33,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:05:33,786 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:05:33,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33 WrapperNode [2021-10-28 09:05:33,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:05:33,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:05:33,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:05:33,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:05:33,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33" (1/1) ... [2021-10-28 09:05:33,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33" (1/1) ... [2021-10-28 09:05:33,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:05:33,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:05:33,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:05:33,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:05:33,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33" (1/1) ... [2021-10-28 09:05:33,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33" (1/1) ... [2021-10-28 09:05:33,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33" (1/1) ... [2021-10-28 09:05:33,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33" (1/1) ... [2021-10-28 09:05:33,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33" (1/1) ... [2021-10-28 09:05:33,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33" (1/1) ... [2021-10-28 09:05:33,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33" (1/1) ... [2021-10-28 09:05:33,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:05:33,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:05:33,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:05:33,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:05:33,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33" (1/1) ... [2021-10-28 09:05:33,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:33,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:33,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:33,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:05:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:05:34,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:05:34,235 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:05:34,236 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 09:05:34,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:05:34 BoogieIcfgContainer [2021-10-28 09:05:34,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:05:34,241 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:05:34,241 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:05:34,246 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:05:34,248 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:05:34,248 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:05:33" (1/3) ... [2021-10-28 09:05:34,250 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b07ae77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:05:34, skipping insertion in model container [2021-10-28 09:05:34,250 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:05:34,250 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:33" (2/3) ... [2021-10-28 09:05:34,253 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b07ae77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:05:34, skipping insertion in model container [2021-10-28 09:05:34,253 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:05:34,253 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:05:34" (3/3) ... [2021-10-28 09:05:34,259 INFO L389 chiAutomizerObserver]: Analyzing ICFG Sequence.c [2021-10-28 09:05:34,337 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:05:34,337 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:05:34,338 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:05:34,338 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:05:34,338 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:05:34,338 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:05:34,339 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:05:34,339 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:05:34,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:34,384 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-28 09:05:34,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:05:34,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:05:34,392 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:05:34,392 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:05:34,392 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:05:34,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:34,394 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-28 09:05:34,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:05:34,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:05:34,395 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:05:34,396 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:05:34,405 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 8#L11-2true [2021-10-28 09:05:34,407 INFO L793 eck$LassoCheckResult]: Loop: 8#L11-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 8#L11-2true [2021-10-28 09:05:34,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:34,415 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 09:05:34,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:34,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887277237] [2021-10-28 09:05:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:34,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:05:34,539 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:05:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:05:34,576 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:05:34,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:34,583 INFO L85 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-10-28 09:05:34,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:34,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557947279] [2021-10-28 09:05:34,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:34,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:05:34,608 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:05:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:05:34,628 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:05:34,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:34,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-28 09:05:34,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:34,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774658864] [2021-10-28 09:05:34,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:34,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:05:34,644 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:05:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:05:34,651 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:05:34,722 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:05:34,723 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:05:34,724 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:05:34,724 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:05:34,724 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:05:34,725 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:34,725 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:05:34,725 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:05:34,726 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2021-10-28 09:05:34,726 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:05:34,726 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:05:34,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:05:34,774 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 09:05:34,794 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 09:05:34,919 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:05:34,920 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:05:34,933 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:34,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:34,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:34,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:05:34,947 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:05:34,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:05:34,985 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:05:34,986 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 09:05:35,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:35,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:35,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:35,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:35,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:05:35,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:05:35,045 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:05:35,076 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:05:35,076 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 09:05:35,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:35,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:35,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:35,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:35,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:05:35,127 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:05:35,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:05:35,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-28 09:05:35,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:35,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:35,176 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:35,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:05:35,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:05:35,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:05:35,245 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:05:35,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:35,260 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:05:35,260 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:05:35,260 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:05:35,261 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:05:35,261 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:05:35,261 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:35,261 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:05:35,261 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:05:35,261 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2021-10-28 09:05:35,262 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:05:35,262 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:05:35,265 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 09:05:35,270 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 09:05:35,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:05:35,349 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:05:35,354 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:05:35,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:35,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:35,357 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:35,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:05:35,359 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 09:05:35,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:05:35,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:05:35,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:05:35,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:05:35,380 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:05:35,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:05:35,395 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:05:35,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:35,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:35,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:35,429 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:35,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:05:35,432 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 09:05:35,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:05:35,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:05:35,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:05:35,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:05:35,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:05:35,449 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:05:35,498 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:05:35,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:35,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:35,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:35,530 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:35,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:05:35,534 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 09:05:35,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:05:35,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:05:35,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:05:35,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:05:35,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:05:35,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:05:35,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:05:35,572 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:05:35,577 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:05:35,577 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:05:35,579 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:35,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:35,593 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:35,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:05:35,601 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:05:35,601 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:05:35,602 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:05:35,602 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2021-10-28 09:05:35,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:35,653 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:05:35,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:35,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:05:35,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:05:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:35,742 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:05:35,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:05:35,743 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 09:05:35,764 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 09:05:35,766 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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 09:05:35,839 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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 19 states and 28 transitions. Complement of second has 5 states. [2021-10-28 09:05:35,844 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 09:05:35,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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 09:05:35,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-10-28 09:05:35,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 1 letters. [2021-10-28 09:05:35,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:05:35,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-28 09:05:35,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:05:35,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-28 09:05:35,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:05:35,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 28 transitions. [2021-10-28 09:05:35,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:05:35,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 5 states and 7 transitions. [2021-10-28 09:05:35,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-28 09:05:35,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-28 09:05:35,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2021-10-28 09:05:35,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:05:35,864 INFO L681 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-28 09:05:35,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2021-10-28 09:05:35,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2021-10-28 09:05:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:05:35,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-10-28 09:05:35,899 INFO L704 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2021-10-28 09:05:35,899 INFO L587 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2021-10-28 09:05:35,899 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:05:35,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2021-10-28 09:05:35,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:05:35,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:05:35,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:05:35,901 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:05:35,901 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:05:35,902 INFO L791 eck$LassoCheckResult]: Stem: 56#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 57#L11-2 assume !(main_~i~0 < 100); 55#L13-1 [2021-10-28 09:05:35,902 INFO L793 eck$LassoCheckResult]: Loop: 55#L13-1 assume !!(main_~j~0 < 21);main_~j~0 := 3 + main_~j~0; 55#L13-1 [2021-10-28 09:05:35,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:35,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2021-10-28 09:05:35,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:35,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721954622] [2021-10-28 09:05:35,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:35,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:35,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:05:35,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:05:35,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721954622] [2021-10-28 09:05:35,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721954622] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:05:35,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:05:35,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 09:05:35,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648208392] [2021-10-28 09:05:35,969 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:05:35,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:35,970 INFO L85 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2021-10-28 09:05:35,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:05:35,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112409040] [2021-10-28 09:05:35,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:05:35,971 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:05:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:05:35,986 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:05:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:05:35,999 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:05:36,031 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:05:36,032 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:05:36,032 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:05:36,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:05:36,034 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:05:36,044 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:36,044 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:05:36,044 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:05:36,045 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2021-10-28 09:05:36,045 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:05:36,045 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:05:36,047 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 09:05:36,056 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 09:05:36,071 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 09:05:36,149 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:05:36,150 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:05:36,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:36,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:36,153 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:36,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:05:36,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:05:36,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:05:36,193 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:05:36,194 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:05:36,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:36,246 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:36,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:36,248 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:36,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:05:36,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:05:36,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:05:36,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:36,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:36,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:36,344 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:36,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:05:36,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:05:36,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:05:36,445 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:05:36,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:36,454 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:05:36,454 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:05:36,454 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:05:36,454 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:05:36,454 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:05:36,455 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:36,455 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:05:36,455 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:05:36,455 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2021-10-28 09:05:36,455 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:05:36,455 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:05:36,457 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 09:05:36,467 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 09:05:36,472 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 09:05:36,545 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:05:36,545 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:05:36,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:36,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:36,562 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:36,569 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 09:05:36,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:05:36,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:05:36,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:05:36,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:05:36,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:05:36,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:05:36,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:05:36,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:05:36,604 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:05:36,609 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:05:36,609 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:05:36,610 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:36,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:36,616 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:36,623 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:05:36,624 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:05:36,624 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:05:36,624 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] [2021-10-28 09:05:36,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:05:36,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:36,737 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:05:36,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:36,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:05:36,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:05:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:05:36,809 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:05:36,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:05:36,809 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 09:05:36,810 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 09:05:36,811 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4 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 09:05:36,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-28 09:05:36,829 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4. 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 5 states and 7 transitions. Complement of second has 2 states. [2021-10-28 09:05:36,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-10-28 09:05:36,845 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 09:05:36,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2021-10-28 09:05:36,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-28 09:05:36,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:05:36,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-28 09:05:36,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:05:36,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 09:05:36,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:05:36,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 7 transitions. [2021-10-28 09:05:36,848 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:05:36,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2021-10-28 09:05:36,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:05:36,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:05:36,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:05:36,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:05:36,849 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:05:36,849 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:05:36,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:05:36,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:05:36,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:05:36,855 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 09:05:36,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:05:36,858 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 09:05:36,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:05:36,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 09:05:36,859 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:05:36,859 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:05:36,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:05:36,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:05:36,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:05:36,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:05:36,860 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:05:36,860 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:05:36,861 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:05:36,862 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:05:36,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:05:36,862 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:05:36,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:05:36,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:05:36 BoogieIcfgContainer [2021-10-28 09:05:36,878 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:05:36,879 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:05:36,879 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:05:36,879 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:05:36,880 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:05:34" (3/4) ... [2021-10-28 09:05:36,883 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:05:36,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:05:36,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:05:36,907 INFO L168 Benchmark]: Toolchain (without parser) took 3359.39 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 56.4 MB in the beginning and 106.9 MB in the end (delta: -50.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:05:36,907 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory was 60.9 MB in the beginning and 60.9 MB in the end (delta: 21.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:05:36,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.43 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 56.1 MB in the beginning and 114.6 MB in the end (delta: -58.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:36,910 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.05 ms. Allocated memory is still 136.3 MB. Free memory was 114.6 MB in the beginning and 112.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:05:36,911 INFO L168 Benchmark]: Boogie Preprocessor took 24.48 ms. Allocated memory is still 136.3 MB. Free memory was 112.8 MB in the beginning and 112.4 MB in the end (delta: 346.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:05:36,912 INFO L168 Benchmark]: RCFGBuilder took 335.25 ms. Allocated memory is still 136.3 MB. Free memory was 112.4 MB in the beginning and 104.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:36,916 INFO L168 Benchmark]: BuchiAutomizer took 2637.36 ms. Allocated memory is still 136.3 MB. Free memory was 104.3 MB in the beginning and 107.1 MB in the end (delta: -2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:05:36,917 INFO L168 Benchmark]: Witness Printer took 17.26 ms. Allocated memory is still 136.3 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 217.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:05:36,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory was 60.9 MB in the beginning and 60.9 MB in the end (delta: 21.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.43 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 56.1 MB in the beginning and 114.6 MB in the end (delta: -58.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.05 ms. Allocated memory is still 136.3 MB. Free memory was 114.6 MB in the beginning and 112.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.48 ms. Allocated memory is still 136.3 MB. Free memory was 112.8 MB in the beginning and 112.4 MB in the end (delta: 346.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 335.25 ms. Allocated memory is still 136.3 MB. Free memory was 112.4 MB in the beginning and 104.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2637.36 ms. Allocated memory is still 136.3 MB. Free memory was 104.3 MB in the beginning and 107.1 MB in the end (delta: -2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 17.26 ms. Allocated memory is still 136.3 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 217.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function 43 + -2 * j and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 8 SDslu, 5 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:05:36,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83469350-b9ec-49e5-8cc4-f3ebdf4a8d80/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...